Showing papers in "European Polymer Journal in 2004"

TL;DR: The microstructure and thermal properties of lyocell and other regenerated cellulose fibres (viscose and modal) were analyzed using DSC, TG and FTIR.

TL;DR: The development of hyperbranched polymers is a rapidly expanding field in the area of macromolecular science as mentioned in this paper, and some of the key advances that have been made in the application of these materials in the areas of material property modifications and in high value technologies.

TL;DR: In this paper, the effect of reaction variables, such as MBA concentration and AA/AAm ratio on the water absorbency capacity have been investigated, and the swelling variations were explained according to swelling theory based on the hydrogel chemical structure.

TL;DR: A review of pendant carbohydrate-carrying linear polymers and their subsequent properties can be found in this article, with a focus on the synthesis of polymers with a wide range of controlled architectures and functionalities.

TL;DR: In this paper, a biopolymer-based superabsorbent hydrogel was synthesized through chemically crosslinking graft copolymerization of acrylic acid (AA) onto kappa-carrageenan (κC), in the presence of a crosslinker and a free radical initiator.

TL;DR: In this paper, the state of dispersion of MWNTs in polycarbonate (PC) matrix was investigated using TEM and AFM micrographs, and it was found that the nanotubes dispersed uniformly through the matrix showing no significant agglomeration in the compositions studied.

TL;DR: In this paper, the effects of ENR with 25 and 50 mol% epoxidation (ENR 50), respectively, were compared at 5 and 10 parts per hundred rubber (phr) concentrations.

TL;DR: In this paper, an octadecyl ammonium modified smectite clay was used to synthesize intercalated and ordered exfoliated layered silicate nanocomposites based on three different epoxy resins of different structures and functionalities.

TL;DR: In this study, CA has been mixed with PEG 600 as an additive in a polar solvent to prepare membranes with improved properties and the efficiency of protein separation by the developed CA membranes have been quantified using model proteins.

TL;DR: A new kind of tissue engineering scaffold materials of needle-like nano-hydroxyapatite (n-HA) and polyamide (PA) biocomposite is prepared by co-solution, co-precipitation method and water treatment under normal atmospheric pressure as discussed by the authors.

TL;DR: The data indicates that although the antimicrobial activity of DEMC is higher than that of chitosan in acetic acid medium, the both compounds are pH dependent and an increase in concentration of acetic Acid results in a significant decrease in both MIC and MBC.

TL;DR: A facile process for the synthesis of exfoliated graphite and polyaniline/graphite nanocomposite was developed in this paper, where graphite nanosheets were prepared via the microwave irradiation and sonication from synthesized expandable graphite.

TL;DR: In this paper, the properties of polyurethane elastomers based on difunctional castor oil and poly(propylene glycol), 2,4-toluene diisocyanate and 1,4butane diol were characterized by conventional methods.

TL;DR: In this paper, the viscoelastic properties of a 60/70 penetration grade bitumen are improved when either a virgin EVA or a recycled EVA copolymer of similar vinyl acetate content are mixed with it.

TL;DR: In this paper, phase morphology, crystallisation behavior and mechanical properties of isotactic polypropylene (iPP)/high density polyethylene (HDPE) blends were investigated.

TL;DR: In this article, a chitosan-O-poly(ethylene glycol) monomethyl ether (MPEG) iodide was synthesized in dimethylformamide in the presence of silver oxide.

TL;DR: In this paper, new polyurethane foams were elaborated with different cellulose derivatives as raw material, by the one-shot process, and the results showed that the storage modulus increased with the amount of cellulose derivative incorporated in the foam.

TL;DR: In this article, a polyurethane block copolymer (PU) was synthesized and was followed by a sol-gel reaction with tetraethoxysilane (TEOS) to prepare high performance PU-silica hybrids with shape memory function.

TL;DR: In this article, the dispersion state of the organo-montmorillonite (O-MMT) in an epoxy/methyl tetrahydrophthalic anhydride system was investigated by X-ray diffraction and scanning electronic microscopy.

TL;DR: In this article, an organophosphorus compound, 10-(2,5-dihydroxyl phenyl)-9, 10, 10-Dihydro-9-oxa-10-phosphaphnanthrene-10oxide (DOPO) and p-benzoquinone, was synthesized through the reaction of 9,10dihdroid-9,oxa,10,phosphaphenanthrene10-oxide (DHPDOPO), and characterized by elemental analysis, Fourier transform infrared spectrum (FT

TL;DR: In this paper, the authors investigated the effective electric conductivity of metal-polymer composite as a function of the electric conductivities of the constituents, of the particle shape and size and of the volume of loading.

TL;DR: In this paper, the influence of IL's nature and reaction parameters upon the polymer formulation has been investigated and it is shown that direct polycondensation is successfully proceeded in ILs and triphenyl phosphite (condensing agent) without any additional extra extra components, such as LiCl and pyridine, using in similar reactions in ordinary molecular solvents.

TL;DR: The chemical polymerization of aniline was carried out in media containing different linear dicarboxylic acids with the use of oxidants such as K2Cr2O7, KMnO4, K2S2O8, KIO3 and FeCl3 as discussed by the authors.

TL;DR: In this paper, polyaniline and poly( o -toluidine) doped with p-toluene sulphonic acid (p -TSA) were synthesized by in situ chemical polymerization method using ammonium per sulphate as an oxidizing agent.

TL;DR: In this paper, a hydrophilic polymer, poly(N-vinyl-2-pyrrolidone), was tethered on the surface of polypropylene microfiltration membrane (PPMM) by UV photo-assisted and γ-ray pre-irradiation induced graft polymerizations.

TL;DR: In this paper, commercial grade polypropylene was modified with a specific nucleation agent based on an amide of dicarboxylic acid, which promotes crystallization predominantly in the β-phase.

TL;DR: In this article, the melting behavior of polytrimethylene terephthalate (PTT) after isothermal crystallization from the melt state was studied using differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) techniques.

TL;DR: In this article, the effect of the type of hydrophobic comonomer and the number and length of the hydrophobes per micelle on the composition of the copolymer and its solubility and rheological properties were studied.

TL;DR: In this article, the phase transition temperature of copolymers with different types of hydrophilic comonomers was evaluated and the influence of the type and amount of the used comonomer on the phase-transition temperature was discussed.

TL;DR: In this paper, photo-initiated cross-linking polymerization of epoxy, vinyl ether and acrylate-based resins containing a small amount (3 wt%) of an organoclay filler was used.