Showing papers in "Polymer in 2020"

TL;DR: A review of vitrimers based on dynamic transesterification reaction (DTER) between hydroxy groups and ester bonds is presented in this article, which is one of the most representative vitrimer chemistries.

TL;DR: In this paper, the authors define the structurally unique features of PIMs, which result in a distinct combination of properties, including solution-processability and microporosity, providing organic materials suitable for the fabrication of membranes that perform efficient molecular sieving.

TL;DR: The basic thermodynamic and physicochemical parameters that affect the LCST are described and selective applications that utilize thermoresponsive polymers in the form of nano-assemblies including micelles, polymersomes, microcapsules and microgels, as well as injectable hydrogels for biomedical applications are presented.

TL;DR: In this paper, different types of light and temperature-responsive block copolymer assemblies containing photochromic spiropyran chain end groups, temperature responsive poly (N-isopropylacrylamide) (PNIPAM) block, and hydrophobic poly (methyl methacrylate) (PMMA) block were developed.

TL;DR: Important considerations for thermoresponsive hydrogels in tissue engineering and drug delivery are highlighted, several commonly explored natural and synthetic thermore sponsorship polymers are discussed, and examples of advanced processing and fabrication techniques using thermoreSponsive polymers for biomedical applications are provided.

TL;DR: In this paper, a new nano-composites based on zinc peroxide (ZnO2) and carbon dots (CDots) decorated with CZNO2 embedded in polyvinyl alcohol (PVA/CZN O2) films have been successfully designed for pollutant dye removal.

TL;DR: In this paper, the anti-freezing and moisturizing mechanism of glycerol (Gly), ethylene glycol (EG) and CaCl2 aqueous solutions was studied.

TL;DR: A non-covalent modified boron nitride (n-CMBN) was obtained by non-Covalent modification successfully and used to prepare poly(ether ether ketone)(PEEK) composites as mentioned in this paper.

TL;DR: A recent perspective review of macromolecular topologies of interpenetrating polymer networks (IPN) can be found in this article, where the authors describe the synthesis parameters used to generate a variety of polymers in IPN-like structures.

TL;DR: In this article, surface grafting and main chain polymerization methods have been employed on the FCPs modifying zeolitic imidazolate framework-67 (ZIF-67) respectively.

TL;DR: In this paper, the function of nanoparticulated lignin derivative as a UV absorber for polymer films is reported about function of particle filter filter for polyvinyl alcohol matrix.

TL;DR: In this paper, the authors reported the preparation of polyaniline (PANI) crystalline nanostructures and their dependent negative permittivity, by controlling the types of doped acids and the doping levels, PANI was synthesized and composed of alternating metallic islands and amorphous regions confirmed by high resolution transmission electron microscopy.

TL;DR: In this article, a fluorene-based COF was synthesized by a facile method directing a crystalline framework, and its ability in removing Sky Blue A, widely used color in the textile industry, was investigated.

TL;DR: In this paper, the authors provide a background from the early days of concerted and focused conjugated polymer research (1970s-1990) to the present, and describe how the tailoring of conjugation polymer structure has now become closely tied to application.

TL;DR: In this paper, the effect of lignin content on the morphology, thermal, crystalline, and micro and macro mechanical properties of a commercial biodegradable poly(butylene adipate-co-terephthalate) (PBAT) matrix was investigated.

TL;DR: In this article, a type of polyurethane with high mechanical performance, excellent recycling ability and shape memory property based on Diels-Alder (DA) reactions has been fabricated through digital light processing (DLP) 3D printing.

TL;DR: In this article, a review article discusses recent trends concerning solution self-assembly of BCPs, including the formation of inverted mesophases, self-folding into single-chain nanoparticles, compartmentalized nanoparticles with sophisticated functions, and nanostructures of amphiphilic copolymers with precise chain lengths and predetermined sequences.

TL;DR: In this article, the effect of hydrogen bonding stability on the memory effects in the crystallization of long chain polyamides have been investigated by the self-nucleation calorimetric technique.

TL;DR: In this paper, a series of synthetic melanin nanoparticles (SMNPs) inks doped with different kinds of metal ions were developed, and all the products exhibited enhanced light absorption ability and total photothermal effect.

TL;DR: Based on the dynamic aromatic disulfide bonds, a series of vitrimer composites with reconfigurability and tunable mechanical properties were successfully prepared in this paper using the time-temperature superposition.

TL;DR: In this paper, two different kinds of hyper-crosslinked porous organic polymers (CPOPs) were synthesized based on tetraphenylanthraquinone units by a reaction of 9,10-bis(diphenylmethylene)- 9, 10-dihydroanthracene (An-4Ph) as the building unit with formaldehyde dimethyl acetal and 2,4,6-trichloro-1,3,5-triazine as two external crosslinkers by using a simple and friendly one-step

TL;DR: In this article, a comparison between N-methyl-2-pyrrolidone (NMP) and dimethylacetamide (DMAc) solvents was performed on 72 polyethersulfone (PES) membrane prototypes.

TL;DR: In this article, the effects of 2-(3,4-epoxy) ethyltriethoxysilane (KH567) on the properties of waterborne acrylic resin were investigated from the aspects of mechanical properties, thermal stability, and hydrophobicity.

TL;DR: In this article, carbon nanotubes (CNTs) were used as a reinforcing nanofiller in high-temperature vulcanized (HTV) silicone rubber and room-time vulcanised (RTV) silicone composites.

TL;DR: In this paper, the authors successfully grafted poly(vinylimidazolium)bromide (PVImBr) polyionic liquid (PIL) brush polymers on the surface of silica nanoparticles (SiNPs) using metal-catalyst-free and a simplified RAFT technique compared to reported methods.

TL;DR: In this paper, a functional polyethylene bearing pendant hydroxyl groups were dynamically crosslinked via reactive extrusion using commercially available N,N′-Bis[3-(trimethoxysilyl)propyl] ethylenediamine (TMSPEDA).

TL;DR: In this article, conductive composite hydrogels were delicately designed and prepared via in-situ polymerization of conductive polymer PEDOT in Poly(vinyl alcohol) (PVA) aqueous solution and then soaking in polyacrylic acid (PAA) solution and glycerin in two stages.

TL;DR: In this article, a bio-based vitrimers with dynamic imine bonds synthesized from vanillin, m-xylylenediamine and DGEBA was presented. But, their performance was limited to 15 days.

TL;DR: In this paper, the authors report on rigid polyurethane foams based on modified used cooking oil, which are obtained by epoxidation and ring-opening reaction with diethylene glycol.

TL;DR: Ionomers are used as polymer electrolyte membranes as well as catalyst binders in membrane electrode assemblies, and are a key component of electrochemical energy conversion and storage technologies such as fuel cells, electrolyzers, and flow batteries.