Showing papers in "European Polymer Journal in 2012"

TL;DR: In this article, homogeneous and heterogeneous grafting from cellulose and cellulose derivatives by ring-opening polymerization (ROP) is reported, which can be used as reinforcing elements to improve mechanical and/or barrier properties of biocomposites.

TL;DR: In this article, a review of the recent advances in the design of honeycomb polymer films by the breath figure (BF) process is presented, and a special attention is given to the preparation of elaborate functional honeycomb-structured polymer films obtained via the simple BF method.

TL;DR: In this article, the compatibility and phase morphology of the PLA/EVA blends were controlled by the ratio of vinyl acetate and ethylene in the random copolymers, and the maximum toughness was obtained with a maximum hardness of approximately 50.

TL;DR: Graphene oxide (GO)/ultrahigh molecular weight polyethylene (UHMWPE) composites were prepared by liquid-phase ultrasonication dispersion followed by hot-pressing as discussed by the authors.

TL;DR: In this article, nanocrystalline cellulose (NCC) was used to improve the performance of polyvinyl acetate (PVA) as a wood adhesive for wood.

TL;DR: Two-dimensional IR correlation spectroscopy has been successfully applied to these problems in the attempt to measure the fractional extent of crystallinity in PET as a function of time and crystallization temperature as well as changes to molecular configuration.

TL;DR: In this paper, a thorough rheological study of polymer solutions in the bulk and at the interface was conducted to find correlations between those properties and the electrospinnability of the solutions and the morphology of the resultant nanofibers.

TL;DR: In this paper, a self-assembled graphene/carbon nanotube (CNT)/polystyrene hybrid nanocomposites were prepared by water-based in situ microemulsion polymerization.

TL;DR: In this article, free radical polymerization of butyl acrylate as an initiator in the presence of 2,2′-Azoisobu-tyronitrile (AIBN) and the average molecular weight, polydispersity and thermal stability were evaluated.

TL;DR: In this paper, the effects of carbon nanofibers (CNFs) on microstructure, phase transformation, and electric/dielectric in response to the mechanical stretching and followed by isothermal recrystallization were investigated.

TL;DR: In this article, the rheological properties of each individual component were briefly presented focusing on the most important aspects to be taken into account during blends preparation and investigation, and the kinetics of PHBV viscosity decrease due to strong polymer degradation in the molten state was recorded.

TL;DR: In this article, a grafting reaction between anhydride-grafted PLA copolymer with hydroxyl-functionalized citrate plasticizer, i.e., tributyl citrate (TbC), was so-carried out through reactive extrusion.

TL;DR: In this paper, a series of hydrogels were synthesized varying the percentage of CNWs (1, 2, 5, 10, and 20 ) and the amount of crosslinking agent (0.05, 0.15, and 0.20 ).

TL;DR: In this paper, the influence of the energy supplied to the powder on the microstructure and on the physical properties of sintered parts was investigated using X-ray tomography.

TL;DR: In this paper, two bio-based poly(ether ester) polyols (Liprol™ 270 and Liprol™ 320) with high functionality and low viscosity were synthesized from canola oil.

TL;DR: In this article, the phase change mechanism of the PEG/SiO 2 composites under the different confinement of the silica framework was investigated, and the as-prepared samples were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy and scanning electron microscope (SEM) techniques.

TL;DR: In this article, the helium and oxygen gas barrier properties of poly(lactide) were investigated as a function of stereochemistry and crystallinity degree, and it was shown that the gas permeability increased with increasing quantity of α-crystals in poly(n,l-lactides) and remained constant with increasing number of α−−−crystals.

TL;DR: In this paper, the effect of reprocessing cycles on the physical properties of the prepared ABS blends was evaluated by mechanical tests (tensile, flexural and impact tests) and by rheological and thermo-mechanical measurements.

TL;DR: In this article, the effect of functionalized multiwalled carbon nanotubes (FMWCNTs) on the phase morphology of immiscible high density polyethylene/polyamide 6 (HDPE/PA6, 50/50) blend has been investigated.

TL;DR: In this paper, a sandwich-like polyaniline/graphene composite nanosheets have been synthesized by chemical oxidation polymerization of aniline monomer on the surfaces of reduced graphene oxide in the absence of any surfactants.

TL;DR: In this article, the shape memory properties of epoxy-cyanate ester polymers with varying proportion of DGEBA/PTOH/BADC were studied for their flexural, dynamic mechanical and thermal properties.

TL;DR: In this paper, the healing of a mendable epoxy resin containing polyethylene-co-methacrylic acid (EMAA) particles has been confirmed to occur via a pressure delivery mechanism of the healing agent, EMAA, into a crack plane during thermal activation.

TL;DR: In this article, a polyimide (PI)/graphene oxide (GO) nanocomposite films were prepared by chemical cross-linking using small amounts of divalent Mg ions.

TL;DR: In this paper, a novel strategy for introducing long chain branches (LCB) on commercial polypropylene (PP) was described using an extender agent, poly (hexamethylendiamine-guanidine hydrochloride) (PHGH), to couple with glycidyl methacrylate-grafted PP (PP-GMA).

TL;DR: In this paper, the authors showed that thermal treatment of ortho-hydroxy containing polyimides (HPIs) in the solid state certainly leads to the formation of polybenzoxazoles (PBOs).

TL;DR: In this paper, the authors studied the network formation of cyanate ester resin/graphene oxide (GO) nanocomposites by means of Differential Scanning Calorimetry (DSC), Fourier Transform Infrared (FT-IR) and Raman spectroscopies.

TL;DR: In this paper, a relative time-saving method, successive self-nucleation and annealing (SSA) fractionation was applied to evaluate the stereo-defect distribution of iPP.

TL;DR: In this article, a solution blending method was used to produce poly(methyl methacrylate) (PMMA)/graphene nanocomposites by using a stable colloidal suspension of graphene dispersion.

TL;DR: In this paper, the epoxy-POSS hybrid networks with POSS bound as pendant cages or with untethered POSS dispersed in the matrix were prepared and their structure was controlled.

TL;DR: In this article, negative charged cellulose acetate (CA) and positively charged chitosan (CS) were assembled by the electrospinning-electrospraying hybrid technique via physical deposition and electrostatic force for the first time.