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Journal of Applied Polymer Science 2002, 86, 2296-2306.
The purpose of this research was to synthesize and characterize a novel class of four-arm, star-shape biodegradable polymers having double-bond functionality as a precursor for free-radical polymerization, with unsaturated monomers or macromers or photocrosslinking for network formation. The synthesis involved two basic steps. First, hydroxyl-functionalized four-arm poly(_-caprolactone) s (PPCL-OH...
http://www.polymer.cn//ss/langmeidong/publicationsshow_1609.html |
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Journal Applied Polymer Science 1998, 70(8), 1427-1436
Poly(ethylene glycol)-block-poly(butyl acrylate) synthesized by radical polymerization in a one-step procedure were characterized by gel permeation chromatography, infrared, 1H-NMR spectroscopy, and differential scanning calorimetry (DSC). The crystalline property, emulsifying property, and phase transfer catalytic effect in the Williamson reaction were studied. It was found that the crystallinity...
http://www.polymer.cn//ss/langmeidong/publicationsshow_1603.html |
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Journal of Applied Polymer Science 1997, 65(9), 1667-1674
Prepolymers of poly(ethylene oxide) (Pre-PEO) were synthesized by reacting azoisobutyronitrile (AIBN) with poly(ethylene glycol) (PEG), and their structures were characterized by IR and UV. The molecular weight of pre-PEO was related to the feed ratio and reaction time. These prepolymers can be used to prepare block copolymers—poly(ethylene oxide) -block-poly(butyl acrylate) (PEO-b-PBA) by r...
http://www.polymer.cn//ss/langmeidong/publicationsshow_1599.html |
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Amphiphilic Polymer Micellar Disruption Based on Main-Chain Photodegradation
关键字：Amphiphilic Polymer Micellar
The amphiphilic block copolymer poly(ethylene
oxide)-b-poly(N,N′-dihydroxypyromellitimide-hexamethylene diisocyanate)
(PEO-b-PNH) with photocleavable N?O urethanes has
been prepared to investigate the photodegradation of the hydrophobic
main chain and therefore the disruption of copolymer
micelles. Measurements of absorption and emission spectra, optical
transmittance, DLS ana...
http://www.polymer.cn/research/sy_info19441 |
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Journal of Polymer Science Part A: Polymer Chemistry 2011, 49(22), 4747
关键字：graphene; nanocomposites; SET-LRP; synthesis
A mild and efficient strategy is presented for growing thermo-sensitive polymers directly from the surface of exfoliated graphene oxide (GO). This method involves the covalent attachment of Br-containing initiating groups onto the surface of GO sheets followed by in situ growing poly[poly(ethylene glycol) ethyl ether methacrylate] (PPEGEEMA) via single-electron- transfer living radical polymerizat...
http://www.polymer.cn/research/sy_info14696 |
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Transformation of polymer fibers and rods into polymer spheres driven by the rayleigh instability
Electrospinning is a simple and convenient method to produce polymer fibers with diameters ranging from several nanometers to a few micrometers. Various types of polymer fibers have been made by electrospinning for different applicatio...
http://www.polymer.cn/research/dis_info16800 |
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Investigation of Reactive Polymer-Polymer Interface Using Nanomechanical Mapping
Achieving compatibilization of immiscible polymer blends is a convenient and attractive way for obtaining high performance polymeric materials.
http://www.polymer.cn/research/dis_info12940 |
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Mechanical Behavior of Aligned Electrospun Polymer Nanofibers
关键字：Aligned Electrospun Polymer Nanofibers
This paper reviews our efforts to understand the deformation mechanics of spatially confined polymers with electrospinning-enabled techniques. We first evaluated the tensile behavior of electrospun polycaprolactone (PCL) as a function of nanofib...
http://www.polymer.cn/research/dis_info10510 |
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Structure-Defined C60/Polymer ColloidsSupramolecular Nanocomposites in Water
关键字：C60/Polymer
We report a new supramolecular method for the synthesis of well-defined pristine C60/polymer colloids nanocomposites in water. To a polymer colloids solution in water or alcohol, we introduced C60 solution in a solvent that is&nbs...
http://www.polymer.cn/research/dis_info9535 |
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Disclosed Percolation Phenomena and Mechanism in Reinforcement of Elastomeric Polymer by Nano-filler
关键字：Elastomeric Polymer
Nano-reinforcement by employing nanoparticles is necessary for high-efficiency reinforcement of elastomeric polymer materials, which was already proven by numerous researches and industrial applications. This report firstly disclosed the percolation pheno...
http://www.polymer.cn/research/dis_info9052 |
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