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Synthesis and Characterization of Sulfonated poly(2,6-dimethyl-1,4-phenylene oxide)/poly(2,6-diphenyl-1,4-phenylene oxide) copolymer Proton Exchange Membranes
关键字：Synthesis,Characterization,Sulfonated,poly,dimethyl,phenylene,oxide,poly,diphenyl,phenylene,oxide,copolymer,Proton,Exchange,Membranes,
Sulfonated poly(phenylene oxide)(S-PPO) were prepared by chain polymerization with 2,6-dimethyl phenol and 2,6-diphenyl phenol, and followed sulfonation with chlorosulfonic acid.
http://www.polymer.cn/research/dis_info5681 |
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Preparation and Charaterization of New nanocomposite materials based on poly (L-lactic acid) - poly (εpsilon-caprolactone) and organo-modified montmorillonites
关键字：Preparation,Charaterization,New,nanocomposite,materials,based,poly,lactic,acid,poly,psilon,caprolactone,organo,modified,montmorillonites,
New nanocomposites were prepared by melt blending poly (L-lactic acid) (PLLA),poly (ε-caprolactone) (PCL), and organically modified montmorillonite (OMMT).
http://www.polymer.cn/research/dis_info5649 |
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Biodegradable poly (ε-caprolactone) – b – poly (ethylene oxide) coprlymers with different arms: synthesis, effect of architecture on crystallization and nanoparticles thereof
关键字：Biodegradable,poly,caprolactone,poly,ethylene,oxide,coprlymers,different,arms,synthesis,effect,architecture,crystallization,nanoparticles,thereof,
Well-defined biodegradable poly(ε-caprolactone) -b-poly(ethylene oxide) (PCL-b-PEO) copolymers with different arms were synthesized via controlled ring-opening polymerization of ε-caprolactone followed by coupling reaction with carboxyl-terminated PEO, where these&nbs...
http://www.polymer.cn/research/dis_info4968 |
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Poly(lactic acid)and process for the preparation
关键字：Poly,lactic,acid,process,preparation,
The paper relates to a poly(lactic acid)which is a useful biodegradable polymer as a substitute for medical materials or general resins and a process for preparing the poly(lactic acid)with a weight average molecular weight of&nbs...
http://www.polymer.cn/research/dis_info3349 |
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MISCIBILITY, MELTING AND CRYSTALLISATION BEHAVIOUR OF BIODEGRADABLE POLY(HYDROXYBUTYRATE) AND POLY(D,L-LACTIC ACID) BLENDS USING TEMPERATUREMODULATED DIFFERENTIAL SCANNING CALORIMETRY
关键字：MISCIBILITY,MELTING,AND,CRYSTALLISATION,BEHAVIOUR,BIODEGRADABLE,POLY,HYDROXYBUTYRATE,AND,POLY,LACTIC,ACID,BLENDS,USING,TEMPERATUREMODULATED,DIFFERENTIAL,SCANNING,CALORIMETRY,
Biodegradable poly(3-hydroxybutyrate) (PHB) and poly(D,L-lactic acid) (RPLA) can be blended to reduced toughness of PHB for practical applications.
http://www.polymer.cn/research/dis_info2442 |
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Preparation and Characterization of Cationic Chitosan-modified Poly(D,L-lactide-co-glycolide) Copolymer Nanospheres Poly(D,L-lactide-co-glycolide) Copolymer Nanospheres
关键字：Preparation,Characterization,Cationic,Chitosan,modified,Poly,lactide,glycolide,Copolymer,Nanospheres,Poly,lactide,glycolide,Copolymer,Nanospheres,
Gene delivery using cationic polymers is one of the greatest challenges for inventing non-viral vector systems instead of virus-based vectors. Polylactide (PLA), polyglycolide (PGA) and their copolymers (PLGA) have been demonstrated to be&n...
http://www.polymer.cn/research/dis_info1933 |
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Langmuir 2015: Effects of Water on the Single-chain Elasticity of poly(U) RNA
关键字：RNA
Water,
the dominant component in the physiological condition, is a complicated
solvent, which greatly affects the properties of solute molecules. Here, we utilize
atomic force microscope-based single-molecule force spectroscopy to study the
influence of water on the single-molecule elasticity of an unstructured
single-stranded RNA (poly(U)). In nonpolar solvents, RNA presents its inherent
elastici...
http://www.polymer.cn/research/sy_info19248 |
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Single-chain mechanics of poly(N-isopropyl-acrylamide) in the water/methanol mixed solvent
关键字：PNIPAM
The variation of the single-chain mechanics of PNIPAM for the entire
range of the methanol molar fraction (χmethanol) (0 ~
100%) in the water/methanol mixed solvent have been studied by AFM-based single-molecule
force spectroscopy at RT. In general, the single-chain mechanics of PNIPAM
shows a reentrant variation upon the change of χmethanol from 0 to
100%. The possible mechanism for the re...
http://www.polymer.cn/research/sy_info19132 |
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Unexpected Temperature-dependent Single Chain Mechanics of Poly(N-isopropyl-acrylamide) in Water
关键字：PNIPAM
Poly(N-isopropyl-acrylamide) (PNIPAM) is a paradigm
thermal sensitive polymer, which has a lower critical solution temperature
(LCST) around 32oC in water. Herein by AFM-based single molecule
force spectroscopy (SMFS), we measured the single chain elasticity of PNIPAM
across the LCST in water. Below LCST, the force curves obtained at different
temperatures have no remarkable difference; while abov...
http://www.polymer.cn/research/sy_info19130 |
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Binary Solvent Colloids of Thermosensitive Poly(N-isopropylacrylamide) Microgel for Smart Window
关键字：无
Thermosensitive poly(N-isopropylacrylamide) (PNIPAAm) microgel colloids were prepared by using water and high-boiling alcohol as binary solvent. Their thermosensitive behavior and solar modulation ability were studied by differential scanning calorimetery, ultraviolet–visible–near-infrared spectrophotometery, dynamic light scattering, and rheology. Effects of alcohol content and cross-linker dos...
http://www.polymer.cn/research/sy_info19108 |
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