Showing papers in "Journal of Polymer Science Part A in 2014"
183 citations
TL;DR: In macromolecular and material science, atom transfer radical polymerization (ATRP) has intensely influenced the research strategies facilitating fabrication of a wide range of polymers with well-defined structures and functions and their conjugation with biomolecules.
Abstract: In macromolecular and material science, atom transfer radical polymerization (ATRP) has intensely influenced the research strategies facilitating fabrication of a wide range of polymers with well-defined structures and functions and their conjugation with biomolecules. Recently, the required copper (I) catalyst for ATRP process is generated by photoinduced redox reactions involving the in situ reduction of Cu(II) to Cu(I). Photochemically initiated reactions provide several distinct advantages, including temporal and spatial controls, rapid and energy efficient activation. The process is based on photoredox reactions of copper catalysts under various radiation sources with or without various photoinitiators. This Highlight focuses on the historical development, mechanistic aspects, limitations, and opportunities of photoinitiated ATRP along with selected examples. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 2878–2888
158 citations
TL;DR: An improved synthetic method has been developed for oligomeric aromatic ether ketone-based phthalonitrile (PN) resins as discussed by the authors, which lowers the cure temperature of the PN resin to around 150 °C and compared to the traditional high-temperature aromatic diamine.
Abstract: An improved synthetic method has been developed for oligomeric aromatic ether ketone-based phthalonitrile (PN) resins. A new curing additive was studied that lowers the cure temperature of the PN resin to around 150 °C and compared to the traditional high-temperature aromatic diamine. Mechanical and thermo-oxidative analyses of polymeric samples from both systems were determined and compared under various curing conditions. The PN polymer exhibited low water absorption regardless of the chosen cure system. Published 2014. This article is a U.S. Government work and is in the public domain in the USA. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 1662–1668
104 citations
TL;DR: The role of benzene-1,3,5-tricarboxamide (BTA) groups for catalytic activity of single-chain polymeric nanoparticles in water was investigated in the transfer hydrogenation of ketones as discussed by the authors.
Abstract: The structuring role of benzene-1,3,5-tricarboxamide (BTA) groups for the catalytic activity of single chain polymeric nanoparticles in water was investigated in the transfer hydrogenation of ketones. To this end, a set of segmented, amphiphilic copolymers was prepared, which comprised oligo(ethylene glycol) side chains to impart water solubility, BTA and/or lauryl side chains to induce hydrophobicity and diphenylphosphinostyrene (SDP) units in the middle part as a ligand to bind a ruthenium catalyst. All copolymers were obtained by reversible addition-fragmentation chain transfer (RAFT) polymerization and showed low dispersities (M-w/M-n=1.23-1.38) and controlled molecular weights (M-n=44-28 kDa). A combination of circular dichroism (CD) spectroscopy and dynamic light scattering (DLS) showed that all copolymers fold into a single chain polymeric nanoparticles (SCPNs) as a result of the helical self-assembly of the pendant BTA units and/or hydrophilic-hydrophobic phase separation. To create catalytic sites, RuCl2(PPh3)(3) was incorporated into the copolymers. The Cotton effects of the copolymers before and after Ru(II) loading were identical, indicating that the helical self-assembly of the BTA units and the complexation of SDP ligands and Ru(II) occurs in an orthogonal manner. DLS revealed that after Ru(II) loading, SDP-bearing copolymers retained their single chain character in water, while copolymers lacking SDP units clustered into larger aggregates. The Ru(II) loaded SCPNs were tested in the transfer hydrogenation of cyclohexanone. This study reveals that BTA induced stack formation is not crucial for SCPN formation and catalytic activity; SDP-bearing copolymers folded by Ru(II) complexation and hydrophobic pendants suffice to provide hydrophobic, isolated reaction pockets around Ru(II) complexes. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 12-20
101 citations
101 citations
85 citations
TL;DR: In this article, a new type of poly (ionic liquids) prepared by imidazolium ionic liquids directly grafting onto polyethylene oxide backbone was reported, which achieved a high conductivity around 10−5 S cm−1 at 30 °C and close to 10−3 S cm −1 at 90 °C.
Abstract: In this contribution, we report a new type of poly (ionic liquids) prepared by imidazolium ionic liquids directly grafting onto polyethylene oxide backbone. Different molecular weights of poly (ionic liquids) are obtained with a low glass transition temperature up to −14 °C. The materials as polymer electrolyte achieve a high conductivity around 10−5 S cm−1 at 30 °C and close to 10−3 S cm−1 at 90 °C. High viscosity up to 4000 Pa s at room temperature would minimize the electrolytes leaking in electrochemical devices. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 2104–2110
75 citations
TL;DR: In this paper, a facile two-stage UV/UV activation method for the polymerization of off-stoichiometry thiol-ene-epoxy, OSTE+, networks is presented.
Abstract: We present a facile two-stage UV/UV activation method for the polymerization of off-stoichiometry thiol-ene-epoxy, OSTE+, networks. We show that the handling and processing of these epoxy-based res ...
73 citations
TL;DR: In this paper, a dual organic-inorganic crosslinked network is developed containing non-reversible crosslinks and reversible (tetrasulfide) groups, which allows thermally induced mesoscale flow leading to damage closure followed by interfacial strength restoration due to reformation of the reversible groups.
Abstract: In this article, the first generation of healable sol–gel based polymers is reported. A dual organic–inorganic crosslinked network is developed containing non-reversible crosslinks and reversible (tetrasulfide) groups. The designed polymer architecture allows thermally induced mesoscale flow leading to damage closure followed by interfacial strength restoration due to reformation of the reversible groups. While the reversible bonds are responsible for the flow and the interface restoration, the irreversible crosslinks control the required mechanical integrity during the healing process. The temperature dependent gap closure kinetics is strongly affected by the crosslinking density and tetrasulfide content. Raman spectroscopy is used to explain the gap closure kinetics in air and dry nitrogen. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 1953–1961
70 citations
TL;DR: The second largest production volume of fluoropolymers in recent years, and its popularity can be ascribed to high thermal stabil-ity and chemical inertness combined with its ferroelectric behavior as mentioned in this paper.
Abstract: Poly(vinylidene fluoride) (PVDF) has reached the second largest production volume of fluoropolymers in recent years, and its popularity can be ascribed to high thermal stabil- ity and chemical inertness combined with its ferroelectric behavior. Copolymerization of vinylidene fluoride with other monomers leads to a wide variety of products with modified or improved properties. Besides commercially available fluori- nated random copolymers, well-defined block-, graft, and alter- nating copolymers based on PVDF received more attention in recent years. PVDF-containing block copolymers that may self- assemble into well-ordered morphologies are of particular interest, being potential precursors for functional nanostruc- tured materials applicable in membranes and electronics. This Highlight provides an overview of the routes developed towards these materials via conventional and controlled poly- merization techniques. In addition, it discusses their nano- scopic phase behavior and current and potential applications. V C 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 2861-2877
70 citations
TL;DR: These degradable, water soluble polymers with controlled molecular weights and structures could be of significant interest for use in aqueous biomedical applications, such as polymer therapeutics, in which biological clearance is a requirement.
Abstract: The synthesis of a series of novel, water-soluble poly(organophosphazenes) prepared via living cationic polymerization is presented. The degradation profiles of the polyphosphazenes prepared are analyzed by GPC, 31P NMR spectroscopy, and UV–Vis spectroscopy in aqueous media and show tunable degradation rates ranging from days to months, adjusted by subtle changes to the chemical structure of the polyphosphazene. Furthermore, it is observed that these polymers demonstrate a pH-promoted hydrolytic degradation behavior, with a remarkably faster rate of degradation at lower pH values. These degradable, water soluble polymers with controlled molecular weights and structures could be of significant interest for use in aqueous biomedical applications, such as polymer therapeutics, in which biological clearance is a requirement and in this context cell viability tests are described which show the non-toxic nature of the polymers as well as their degradation intermediates and products. © 2013 The Authors Journal of Polymer Science Part A: Polymer Chemistry Published by Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 287–294
TL;DR: In this paper, X-ray diffraction (XRD) patterns indicate the presence of highly crystalline PANI and the sharp peaks in XRD pattern suggest GO sheets not only play an important role in the polymerization of aniline but also in inducing highly crystallized phase of PANI in the final composite.
Abstract: Graphene oxide (GO)–polyaniline (PANI) composite is synthesized by in situ polymerization of aniline in the presence of GO as oxidant, resulting in highly crystalline and conductive composite. Fourier transform infrared spectrum confirms aniline polymerization in the presence of GO without using conventional oxidants. Scanning electron microscopic images show the formation of PANI nanofibers attached to GO sheets. X-ray diffraction (XRD) patterns indicate the presence of highly crystalline PANI. The sharp peaks in XRD pattern suggest GO sheets not only play an important role in the polymerization of aniline but also in inducing highly crystalline phase of PANI in the final composite. Electrical conductivity of doped GO–PANI composite is 582.73 S m−1, compared with 20.3 S m−1 for GO–PANI obtained by ammonium persulfate assisted polymerization. The higher conductivity appears to be the result of higher crystallinity and/or chemical grafting of PANI to GO, which creates common conjugated paths between GO and PANI. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 1545–1554
TL;DR: In this paper, a synthetic route was developed for the preparation of an AB-type of monomer carrying an epoxy and a thiol group, which gave rise to poly(β-hydroxythio-ether)s.
Abstract: A synthetic route is developed for the preparation of an AB-type of monomer carrying an epoxy and a thiol group. Base-catalyzed thiol-epoxy polymerization of this monomer gave rise to poly(β-hydroxythio-ether)s. A systematic variation in the reaction conditions suggested that tetrabutyl ammonium fluoride, lithium hydroxide, and 1,8-diazabicycloundecene (DBU) were good polymerization catalysts. Triethylamine, in contrast, required higher temperatures and excess amounts to yield polymers. THF and water could be used as polymerization mediums. However, the best results were obtained in bulk conditions. This required the use of a mechanical stirrer due to the high viscosity of the polymerization mixture. The polymers obtained from the AB monomer route exhibited significantly higher molecular weights (Mw = 47,700, Mn = 23,200 g/mol) than the materials prepared from an AA/BB type of the monomer system (Mw = 10,000, Mn = 5400 g/mol). The prepared reactive polymers could be transformed into a fluorescent or a cationic structure through postpolymerization modification of the reactive hydroxyl sites present along the polymer backbone. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 2040–2046
TL;DR: In this article, an efficient synthetic route of defined reactive polyester-block-polycarbonate copolymers, utilizing a bifunctional SalenCoNO3 complex as catalyst for the single-step terpolymerization of norbornene anhydride (NA), propylene oxide, and carbon dioxide, was described.
Abstract: This article describes an efficient synthetic route of defined reactive polyester-block-polycarbonate copolymers, utilizing a bifunctional SalenCoNO3 complex as catalyst for the single-step terpolymerization of norbornene anhydride (NA), propylene oxide, and carbon dioxide. The geometric isomer of NA plays an important role in polymerization efficacy and the resulting polymer microstructure, including carbonate content, sequence isomer of polycarbonate moiety, and molecular weight. A hydroxyl-functionalized polyester–polycarbonate block copolymer was synthesized by a thiol-ene reaction. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 789–795
TL;DR: A set of eight functional 4-vinyl-1,2,3-triazolium monomers were synthesized using copper catalyzed azide-alkyne 2 + 3 Huisgen cycloaddition as discussed by the authors.
Abstract: A set of eight functional 4-vinyl-1,2,3-triazolium monomers were synthesized using copper catalyzed azide-alkyne 2 + 3 Huisgen cycloaddition These vinyl-trizolium monomers readily polymerized via free radical polymerization The physical properties of the vinyl-triazolium based poly(ionic liquid)s (PILs) are strongly dependent on the pendant functional groups These polymers were characterized for glass transition temperature (Tg), solubility, and the thermal decomposition The vinyl-triazolium based PILs offer an efficient route to highly functional PILs with the advantage of facile synthesis and the ability to incorporate many desirable functional moieties © 2013 Wiley Periodicals, Inc J Polym Sci, Part A: Polym Chem 2014, 52, 417–423
TL;DR: In this article, living cationic ring-opening polymerization of 2-oxazolines was used to produce biocompatible polymers exhibiting a lower critical solution temperature in aqueous solution close to body temperature.
Abstract: Poly(2-propyl-oxazoline)s can be prepared by living cationic ring-opening polymerization of 2-oxazolines and repre- sent an emerging class of biocompatible polymers exhibiting a lower critical solution temperature in aqueous solution close to body temperature. However, their usability is limited by the irre- versibility of the transition due to isothermal crystallization in case of poly(2-isopropyl-2-oxazoline) and the rather low glass transition temperatures (Tg 45 C, enabling convenient storage in the fridge for future biomedical formulations. V C 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 00, 000-000
TL;DR: The ring-opening polymerization of e-caprolactone (e-CL) and L-lactide (LLA) has been studied using the organocatalysts of diphenyl phosphate (DPP) and 4-dimethylaminopyridine (DMAP).
Abstract: The ring-opening polymerizations (ROPs) of e-caprolactone (e-CL) and L-lactide (LLA) have been studied using the organocatalysts of diphenyl phosphate (DPP) and 4-dimethylaminopyridine (DMAP). The “dual activation” property of DPP and the “bifunctional activation” property of DPP/DMAP were confirmed by the NMR measurement for e-CL and its chain-end model of poly(e-caprolactone) and for LLA and its chain-end model of poly(L-lactide) (PLLA), respectively. The molar ratio of DPP/DMAP was optimized as 1/2 for the ROP of LLA leading to the well-defined PLLA, such as the molecular weight determined from 1H NMR measurement of 19,200 g mol−1 and the narrow polydispersity of 1.10. Additionally, functional initiators were utilized for producing the end-functionalized PLLAs. The DPP-catalyzed ROPs of e-CL and its analogue cyclic monomers and then the DPP/DMAP-catalyzed ROP of LLA produced block copolymers. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 1047–1054
TL;DR: In this paper, a polyhydroxyurethane bearing silicone backbone was prepared by polyaddition of silicone diamines with a bifunctional five-membered cyclic carbonate prepared from the corresponding diepoxide and CO2.
Abstract: Polyhydroxyurethane bearing silicone backbone was prepared by polyaddition of silicone diamines with a bifunctional five-membered cyclic carbonate prepared from the corresponding diepoxide and CO2. Polymerization in propylene glycol methyl ether acetate proceeded smoothly, and polymers could be obtained in high yields under appropriate conditions. The introduced silicone moieties improved the hydrophobicity and lowered the glass transition temperature keeping thermal stability. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 1113–1118
TL;DR: In this paper, a novel polymer electrolyte is synthesized by directly grafting poly ionic liquids onto silica nanoparticles and the kinetic study of surface-initiated polymerization has also been included.
Abstract: A novel polymer electrolyte is synthesized by directly grafting poly ionic liquids onto silica nanoparticles. The kinetic study of this surface-initiated polymerization has also been included. A gel-state electrolyte is formed by mixing this type of polymer/silica nanocomposite with ionic liquids under 60 °C, which exhibits an excellent conductivity of 0.8 mS/cm at room temperature and 14.7 mS/cm at 90 °C. In addition, the mechanism of gel formation has also been discussed in this article. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 121–127
TL;DR: In this article, the micellar macro-RAFT agent-mediated disper- sion polymerization of styrene in the methanol/water mixture is performed and synthesis of temperature sensitive ABC tri-block copolymer nanoparticles is investigated.
Abstract: The micellar macro-RAFT agent-mediated disper- sion polymerization of styrene in the methanol/water mixture is performed and synthesis of temperature-sensitive ABC tri- block copolymer nanoparticles is investigated. The thermores- ponsive diblock copolymer of poly(N,N-dimethylacrylamide)- block-poly(N-(4-vinylbenzyl)-N,N-diethylamine) trithiocarbonate forms micelles in the polymerization solvent at the polymer- ization temperature and, therefore, the dispersion RAFT polymerization undergoes as similarly as seeded dispersion polymerization with accelerated polymerization rate. With the progress of the RAFT polymerization, the molecular weight of the synthesized triblock copolymer of poly(N,N-dimethylacry- lamide)-block-poly(N-(4-vinylbenzyl)-N,N-diethylamine)-b-polysty- rene linearly increases with the monomer conversion, and the PDI values of the triblock copolymers are below 1.2. The disper- sion RAFT polymerization affords the in situ synthesis of the tri- block copolymer nanoparticles, and the mean diameter of the triblock copolymer nanoparticles increases with the polymeriza- tion degree of the polystyrene block. The triblock copolymer nanoparticles contain a central thermoresponsive poly (N- (4-vinylbenzyl)-N,N-diethylamine) block, and the soluble-to- insoluble phase-transition temperature is dependent on the methanol content in the methanol/water mixture. V C 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 2155-2165
TL;DR: In this article, the effect of the chemical nature of ionic liquids on the final properties of epoxy networks was studied, and the use of phosphonium salts as new additives led to the network with a high conversion of the epoxy group (>90%), a high glass transition temperature Tg (>90 °C), adjustable in function of the counteranion and an increase of the storage modulus.
Abstract: In this study, epoxy‐networked polymeric materials containing tributyl (ethyl) phosphonium diethyl phosphate (CYPHOS®IL169) and trihexyl (tetradecyl) phosphonium bis 2,4,4‐(trimethyl pentyl)‐phosphinate (CYPHOS®IL104) were developed from a mixture of epoxy prepolymer (DGEBA) and different amounts of ionic liquids (10–20–30 phr). Then, the effect of the chemical nature of ionic liquids on the final properties of epoxy networks was studied. Thus, the use of phosphonium salts as new additives led to the network with a high conversion of epoxy group (>90%), a high glass transition temperature Tg (>90 °C), adjustable in function of the counteranion and an increase of the storage modulus. In addition, the hydrophobic behavior and the thermal stability of the materials were also investigated by sessile drop method and thermogravimetric analyses. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 3463–3471
TL;DR: In this article, Sonseca, A, Camarero-Espinosa, S, Peponi, L, Weder, C, Foster, E J, Kenny, J M, & Gimenez, E (2014) Mechanical and shapememory properties of poly (mannitol sebacate)/cellulose nanocrystal nanocomposites.
Abstract: "This is the peer reviewed version of the following article: Sonseca, A, Camarero‐Espinosa, S, Peponi, L, Weder, C, Foster, E J, Kenny, J M, & Gimenez, E (2014) Mechanical and shape‐memory properties of poly (mannitol sebacate)/cellulose nanocrystal nanocomposites Journal of Polymer Science Part A: Polymer Chemistry, 52(21), 3123-3133, which has been published in final form at https://doiorg/101002/pola27367 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving"
TL;DR: The frontal ring opening metathesis polymerization of dicyclopentadiene using first and second generation Grubbs' catalysts is reported in this article, where dimethylaminopyridine is added as an inhibitor.
Abstract: The frontal ring opening metathesis polymerization of dicyclopentadiene using first and second generation Grubbs' catalysts is reported. To have sufficiently long pot lives, dimethylaminopyridine is added as an inhibitor. By choosing the proper compositions, it is possible to determine the ranges in which pure frontal polymerization occurs. A thorough study on the effect of the above components on the maximum temperatures reached by the front and on its velocities is performed. Namely, temperatures range from 164 to 205 °C depending on the type of catalyst and the above component ratios. Besides, front velocities range from 1.0 to 15.0 cm/min, which are one of the lowest and one of the highest values reported so far in any frontal polymerization experiment reported in literature. This finding allows the complete control of the frontal ring opening polymerization of dicyclopentadiene also in practical applications. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 2776–2780
TL;DR: In this paper, bifunctional aluminum porphyrin catalysts bearing quaternary ammonium salts on the ligand framework were prepared, and the axial ligand had dramatic effects on the catalytic activity of resultant complex.
Abstract: Due to the concern on residue toxic metal in biodegradable poly(propylene carbonate) (PPC), soil tolerant and heavy metal free aluminum complexes, that is, bifunctional aluminum porphyrin catalysts bearing quaternary ammonium salts on the ligand framework were prepared. Variation of the quaternary ammonium anion and the axial ligand had dramatic effects on the catalytic activity of resultant complex, among which complex 3b yielded perfectly alternative PPC with high molecular weight and relatively narrow polydispersity, and its TOF reached 3,407 h(-1) at [PO]/[cat.] ratio of 20,000 at 110 degrees C, although the PPC selectivity was 71%. By introducing specific substituent on the ligand framework, the electronic environment at the active center can be changed, among which complex 5b bearing tertiary butyl-functionalized aryl substituents exhibited a TOF of 449 h(-1) at [PO]/[cat.] ratio of 5,000 at 70 degrees C, with PPC selectivity of 92% and number average molecular weight of 36 kg mol(-1). (c) 2014 Wiley Periodicals, Inc.
TL;DR: In this article, the MADIX/reversible addition-fragmentation chain transfer (RAFT) process was used to synthesize diblock copolymers of poly(N-vinylcaprolactam) (PVCL) and poly(n-vineyl-2-pyrrolidone) (pVCL-b-PVPON) with well-defined block lengths.
Abstract: We report on novel diblock copolymers of poly(N-vinylcaprolactam) (PVCL) and poly(N-vinyl-2-pyrrolidone) (PVPON) (PVCL-b-PVPON) with well-defined block lengths synthesized by the MADIX/reversible addition-fragmentation chain transfer (RAFT) process. We show that the lower critical solution temperatures (LCST) of the block copolymers are controllable over the length of PVCL and PVPON segments. All of the diblock copolymers dissolve molecularly in aqueous solutions when the temperature is below the LCST and form spherical micellar or vesicular morphologies when temperature is raised above the LCST. The size of the self-assembled structures is controlled by the molar ratio of PVCL and PVPON segments. The synthesized homopolymers and diblock copolymers are demonstrated to be nontoxic at 0.1–1 mg mL−1 concentrations when incubated with HeLa and HEK293 cancer cells for various incubation times and have potential as nanovehicles for drug delivery. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 2725–2737
TL;DR: In this article, a mechanism-based kinetic and structural model has been defined, showing better prediction capabilities than previous living polymerization and simple regeneration models, and the curing kinetics and network buildup during curing of epoxy-anhydride formulations using tertiary amines as initiators are reviewed.
Abstract: The curing kinetics and network buildup during curing of epoxy–anhydride formulations using tertiary amines as initiators are reviewed in this work. A mechanism-based kinetic and structural model has been defined, showing better prediction capabilities than previous living polymerization and simple regeneration models. The curing kinetics have been analyzed using differential scanning calorimetry (DSC), and the gelation during curing has been determined by combined thermomechanical analysis and DSC. The effect of initiator content and epoxy equivalent weight are taken into account. The network buildup has been modeled using a stochastic network buildup model based on the random combination of primary chains generated by the kinetic model. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 61–75
TL;DR: In this article, a biobased poly(2,5-furandimethylene succinate-co-butylene succinate) copolymers were synthesized by polycondensation of 2.5-bis(hydroxymethyl)furan, 1,4-butanediol, and succinic acid.
Abstract: We synthesized biobased poly(2,5-furandimethylene succinate-co-butylene succinate) [P(FS-co-BS)] copolymers by polycondensation of 2,5-bis(hydroxymethyl)furan, 1,4-butanediol, and succinic acid. These copolymers could be crosslinked to form network polymers by means of a reversible Diels–Alder reaction with bis-maleimide. The thermal properties, mechanical properties, and healing abilities of the P(FS-co-BS)s and the network polymers were investigated. The mechanical properties of the network polymers depended on the comonomer composition of the P(FS-co-BS)s and the maleimide/furan ratio in the network polymers. Some of the copolymers exhibited healing ability at room temperature, and their healing efficiency was enhanced by solvent or heat. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 216–222