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Star-shaped polymer consisting of a porphyrin core and poly(L-lysine) dendron arms: synthesis, drug delivery and in vitro chemo/photodynamic therapy
A novel star-shaped polymer, porphyrin-poly(L-lysine) dendrons (PP-PLLD), is synthesized by
the click reaction between azido-modifi ed porphyrin and propargyl focal point poly(L-lysine)
dendrons. Its chemical structure is characterized by 1 H nuclear magnetic resonance, Fourier
transform infrared spectroscopy, and gel permeation chromatography (GPC) is analyses etc.
Due to its amphiphilic prop...
http://www.polymer.cnt//ss/madong/publicationsshow_5964.html |
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Room temperature spontaneous exfoliation of organo-clay in liquid polybutadiene: Effect of polymer end-groups and the alkyl tail number of organic modifier
Disorderly exfoliated telechelic liquid polybutadiene/organo-clay nanocomposite gel was, for the first time, successfully prepared at room temperature of 26 C by simply compounding of carboxyl-terminated polybutadiene (CTPB) with organo-clay containing surfactant modifier with two alkyl tails. The dispersion behavior of organo-clay in liquid polybutadiene/organo-clay nanocomposite gels were syste...
http://www.polymer.cnt//ss/sunpingchuan/publicationsshow_5155.html |
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Various types of hydrogen bonds, their temperature dependence and water-polymer interaction in hydrated poly(acrylic acid) as revealed by H-1 solid-state NMR spectroscopy
Various types of hydrogen bonds, their temperature dependence and water-polymer interaction in hydrated poly(acrylic acid) (PAA) were systematically investigated using 1H CRAMPS solid-state NMR techniques in the temperature range from 25 to 110 °C. The 1H CRAMPS NMR methods are based on a recently developed continuous phase modulation technique for 1H-1H homonuclear dipolar decoupling. The 1H CRA...
http://www.polymer.cnt//ss/sunpingchuan/publicationsshow_5154.html |
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Unusual rheological behavior of liquid polybutadiene rubber/clay nanocomposite gels: The role of polymer-clay interaction, clay exfoliation, and clay orientation and disorientation
The rheological properties of liquid polybutadiene rubber/organo-clay nanocomposite gels were investigated by rheological experiments, focusing on the effects of clay exfoliation and orientation-disorientation as well as polymer-clay interaction and temperature. Both irreversible and reversible viscosity transitions were observed in the temperature range from 26 to 136 °C in steady shear experime...
http://www.polymer.cnt//ss/sunpingchuan/publicationsshow_5149.html |
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Receptor-Free Poly(phenylenevinylene) Fibrous Membranes for Cation Sensing: High Sensitivity and Good Selectivity Achieved by Choosing the Appropriate Polymer Matrix
Poly(phenylenevinylene)/polyimide (PPV/PI) and poly(phenylenevinylene)/ polymethylmethacrylate (PPV/PMMA) fibrous membranes without any deliberately introduced receptors were prepared as fluorescence sensing materials through electrospinning, followed by thermal treatment. Both of these membranes displayed higher sensitivity toward most cations compared to the corresponding spincoated films. PPV...
http://www.polymer.cnt//ss/fanlijuan/publicationsshow_5081.html |
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126. Increased spherulitic growth rates of semicrystalline polymer due to enhanced limited local chain segmental mobility at the interface of double-layer thin films
Abstract： In this work the nucleation and growth of spherulites for the below polylactide (PLA) layer in poly(ε-caprolactone)/polylactide (PCL/PLA) double-layer films during isothermal crystallization at various temperatures above the melting point of PCL have been investigated by using polarized optical microscopy (POM). It is revealed that two types of spherulitic morphologies ...
http://www.polymer.cnt//ss/zhigangwang/publicationsshow_4932.html |
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[J. Am. Chem. Soc.] Rare Earth Metal-Mediated Group-Transfer Polymerization: From Defined Polymer Microstructures to High-Precision Nano-Scaled Objects
Poly(2-isopropenyl-2-oxazoline) (PIPOx) and poly(2-vinylpyridine) (P2VP) have been efficiently synthesized using bis(cyclopentadienyl)methylytterbium (Cp2YbMe) as catalyst. The polymerizations of 2-isopropenyl-2-oxazoline (IPOx) and 2-vinylpyridine (2VP) follow a living group-transfer polymerization (GTP) mechanism, allowing a precise molecular-weight control of both polymers with very narrow mo...
http://www.polymer.cnt//ss/zhang_ning/publicationsshow_4850.html |
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Cure Kinetics of an Epoxy Resin Containing Naphthyl/Dicyclopentadiene Moieties and Bis-Phenoxy (3-Hydroxy) Phosphine Oxide System and Properties of Its Cured Polymer
The cure kinetics of naphthyl/dicyclopentadiene epoxy resin and bisphenoxy (3-hydroxy) phosphine oxide was investigated by differential scanning calorimetry (DSC) under nonisothermal and isothermal condition. The advanced isoconversional method was used to study the nonisothermal DSC data, the effective activation energy of the curing system in the early stage agreed with the value Calculated from...
http://www.polymer.cnt//ss/caizhiqi/publicationsshow_4192.html |
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Macromolecularly imprinted calcium phosphate/alginate hybrid composite polymer microspheres with the surface imprinting of bovine serum albumin in inverse-phase suspension
介绍了一种制备蛋白质表面分子印迹海藻酸钙杂化凝胶的方法。
http://www.polymer.cnt//ss/HMIP/publicationsshow_3688.html |
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J.G. Chen, X.H. Li,* W.G. Cui, C.Y. Xie, J. Zou, B. Zou. In situ grown fibrous composites of poly(DL-lactide) and hydroxyapatite as potential tissue engineering scaffolds. Polymer, 51: 6268-6277 (2010)
J.G. Chen, X.H. Li,* W.G. Cui,C.Y. Xie, J. Zou, B. Zou. In situ grown fibrous composites of poly(DL-lactide) and hydroxyapatite as potential tissue engineering scaffolds. Polymer, 51: 6268-6277 (2010)
www.sciencedirect.com/science/article/pii/S0032386110009523
http://www.polymer.cnt//ss/xiaohongli/publicationsshow_3564.html |
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