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Preparation of mechanically-tough and thermo-responsive polyurethane-poly(ethylene glycol) hydrogels
Hydrogels have been considered as promising materials in tissue engineering and biomedical areas. However, the weak and brittle nature of common synthetic hydrogels largely hinders their potential applications. Therefore, it is challenging to fabricate tough hydrogels for biomedical applications. In this manuscript, well-defined and thermo-responsive polyurethane-poly(ethylene glycol) (PU-PEG) hyd...
http://www.polymer.cnt//ss/xulq/publicationsshow_12371.html |
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Synthesis of catechol and zwitterion-bifunctionalized poly(ethylene glycol) for the construction of antifouling surfaces
The synthesis of catechol-containing small molecules and macromolecules always requires multiple reaction steps, coupling agents, or enzymes. In this study, a simple and scalable strategy for the preparation of catechol-containing poly(ethylene glycol) (CaPEG) by epoxide-amine polymerization of PEG diglycidyl ether with dopamine is described. The as-formed tertiary amine groups in the backbone of ...
http://www.polymer.cnt//ss/xulq/publicationsshow_12369.html |
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Graft Copolymerization of Styrene and Acrylonitrile in the Presence of Poly(propylene glycol): Kinetics and Modeling.
A heterogeneous polymerization model, including an initial solution polymerization model and a later two-phase polymerization model, is developed to describe graft free-radical copolymerization of styrene and acrylonitrile in the presence of poly(propylene glycol). The diffusion-controlled termination, initiation, propagation, and transfer in the dispersed phase are cons...
http://www.polymer.cnt//ss/wulinbo/publicationsshow_12213.html |
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Kinetics and modeling of vinyl acetate graft polymerization from poly(ethylene glycol)
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http://www.polymer.cnt//ss/wulinbo/publicationsshow_12205.html |
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A transparent wound dressing based on bacterial cellulose whiskerand poly(2-hydroxyethyl methacrylate)
The current study was aimed to develop a transparent wound dressing comprised of bacterial cellulose(BC) and poly (2-hydroxyethyl methacrylate) (PHEMA) hydrogel coated with silver (Ag) nanoparticles.Briefly, different concentrations of BC whiskers (BCWs) were added into the HEMA solution to formPHEMA/BCWs hydrogel with volume ratio of monomer HEMA and BCWs as 7:3 and 1:1. The addition ofBCWs int...
http://www.polymer.cnt//ss/yangguang/publicationsshow_12173.html |
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Preparation and Rheological Behaviors of Thermoplastic Poly(vinyl alcohol) Modified by Lactic Acid
A thermoplastic modified poly(vinyl alcohol) (PVA-g-LA) with improved melt processing property was prepared bymelt polycondensation of PVA with lactic acid. Rheological behaviors of PVA-g-LA copolymers were investigated using a highpressure capillary rheometer. The influences of the content of oligo-poly (lactic acid) graft chains and content of PVA-0588 on the rheological properties o...
http://www.polymer.cnt//ss/chensichong/publicationsshow_12033.html |
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35. Carboxymethyl cellulose reinforced poly(vinyl alcohol) with trimethylol melamine as a chemical crosslinker
In this investigation, carboxymethyl cellulose (CMC)-reinforced poly(vinyl alcohol) (PVA) were prepared with trimethylol melamine as a chemical crosslinker. The structure and property of hydrogels were measured by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), texture analysis, and rheometry. The FTIR spectra demonstrated that the etherification reactio...
http://www.polymer.cnt//ss/ghgao/publicationsshow_11939.html |
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Study on preparation and property of poly-aminosilicone-rare earth composite
The poly-aminosilicone-rare earth composite was prepared by poly-aminosilicone cross-linked with rare earth and active silanol. The thermal stability of the composites was studied by thermogravimetric analysis (TG). Force condition of the composites in electric field was analyzed and relative polarizability was derived. It is found that the composites containing different rare earth ions have diff...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10726.html |
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Effect of clay on immiscible morphology of poly(butylene terephthalate)/polyethylene blend nanocomposites
Polymer blend nanocomposites containing poly(butylene terephthalate) (PBT), polyethylene (PE), and organoclay were prepared by direct melt compounding. Their immiscible morphologies weree investigated using electronmicroscopy, X-ray diffraction, and parallel plate rheometry. The PE domain sizes were reduced when the polar PBT phase was continuous (PBT/PE = 60/40) because the clay tactoids effectiv...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10703.html |
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Morphology, nonisothermal crystallization behavior, and kinetics of poly(phenylene sulfide)/polycarbonate blend
The morphology and nonisothermal crystallization behavior of blends made of poly(phenylene sulfide) (PPS), with a amorphous polycarbonate (PC) were studied. The blend is found to be partially miscible by the dynamic mechanical thermal analysis (DMTA) and melt rheological measurements. The nonisothermal crystallization behavior of blend was studied by differential scanning calorimetry (DSC). The re...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10686.html |
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