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SYNTHETICALLY HELICITY-CONTROL IN THE CONJUGATED POLYMERS COMPRISED OF FUSED SULFUR-CONTAINING AROMATIC RINGS
关键字：SYNTHETICALLY,HELICITY,CONTROL,THE,CONJUGATED,POLYMERS,COMPRISED,FUSED,SULFUR,CONTAINING,AROMATIC,RINGS,
Thiaheterohelicenes were often characterized by unique optical activity and stable doped state due to their π-electron-excess conjugation on the thiophene ring.
http://www.polymer.cn/research/dis_info824 |
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NEW POLYMERIZATION REACTIONS. THE SYNTHESIS OF CARBON BACKBONE POLYMERS ONE CARBON ATOM AT A TIME
关键字：NEW,POLYMERIZATION,REACTIONS,THE,SYNTHESIS,CARBON,BACKBONE,POLYMERS,ONE,CARBON,ATOM,TIME,
The talk will describe new catalysts and monomers for the synthesis of carbon backbone polymers. The reaction involves the trialkylborane catalyzed polymerization of ylides. All three alkyl groups on boron participate in the reaction&n...
http://www.polymer.cn/research/dis_info366 |
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Precise synthesis of sulfur-containing polymers via cooperative dual organocatalysts with high activity
关键字：Metal-free，carbonyl sulfide，100% alternating degree
Metal-free and controlled synthesis of sulfur-containing polymer is still a big challenge in
polymer chemistry. Here, we report a metal-free, living copolymerization of carbonyl sulfide
(COS) with epoxides via the cooperative catalysis of organic Lewis pairs including bases (e.g.:
phosphazene, amidine, and guanidine) and thioureas as hydrogen-bond donors, afford welldefined poly(monothi...
http://www.polymer.cn/research/sy_info19593 |
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A fluorescein-centered polymer as a phosphor for fabricating pure white light-emitting diodes
关键字：LEDs,fluorescein-centered polymers
White light-emitting diodes (LEDs) are very important energy-saving lighting devices. It is still a big challenge to fabricate pure white LEDs using low-cost, easy-to-process and environment-friendly phosphors. Herein, we report a pure white LED fabricated by combining rationally designed fluorescein-centered polymers with a blue LED chip. Pure white LEDs with Commission International de L’Ecla...
http://www.polymer.cn/research/sy_info19586 |
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12 In situ chemically crosslinked chitosan membrane by adipic acid
关键字：biodegradable biomaterials biopolymers and renewable polymers
Adipic acid, which is nontoxic, was used to dissolve chitosan. The chitosan/adipic acid solution was used to prepare chitosan membrane. After being heated at 80-100 °C, the membrane was in situ chemically crosslinked by adipic acid, as verified by Fourier transform infrared and wide‐angle X‐ray diffractometer analysis. The crosslinked membrane did not collapse even without treatment in alkaline...
http://www.polymer.cn/research/sy_info19548 |
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2. Polymerizing Nonfluorescent Monomers without Incorporating any Fluorescent Agent Produces Strong Fluorescent Polymers.
关键字：polymerization induced fluorecent
All the fl uorescent polymers prepared via atom transfer radical polymerization (ATRP) or reversible addition-fragmentation chain transfer (RAFT) are those polymers that have been functionalized with fl uorophore. Prior to our study, it was generally believed that polymerizing nonfl uorescent monomer without incorporating any fluorescent agent only results in polymer without ...
http://www.polymer.cn/research/sy_info19416 |
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2. Polymerizing Nonfluorescent Monomers without Incorporating any Fluorescent Agent Produces Strong Fluorescent Polymers.
关键字：polymerization induced fluorecent
All the fl uorescent polymers prepared via atom transfer radical polymerization (ATRP) or reversible addition-fragmentation chain transfer (RAFT) are those polymers that have been functionalized with fl uorophore. Prior to our study, it was generally believed that polymerizing nonfl uorescent monomer without incorporating any fluorescent agent only results in polymer without ...
http://www.polymer.cn/research/sy_info19415 |
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(Chin.J.Polym.Sci.) Polysiloxane Side-chain Liquid Crystalline Polymers Prepared by Alkyne Hydrosilylation
关键字：LCP
We describe in this work an alkyne-hydrosilylation approach to synthesize a series of novel polysiloxane sidechain
LCPs attaching end-on or side-on mesogenic side groups. Their properties are characterized by NMR, FTIR, gel
permeation chromatography, thermogravimetric analysis, differential scanning calorimetry, polarized optical microscopy and small-angle X-ray scattering. These obtained alkenyls...
http://www.polymer.cn/research/sy_info19380 |
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Polysiloxane-Based Liquid Crystalline Polymers and Elastomers Prepared by Thiol-Ene Chemistry
关键字：LCP, polysiloxane
A series
of side-chain liquid crystalline polymers (LCPs) with polysiloxane backbones
have been synthesized by grafting mesogenic monomers to
poly[3-mercaptopropylmethylsiloxane] (PMMS) via thiol-ene click chemistry. Moreover, by controlling the molar ratio of PMMS and
mesogenic monomers, PMMS-based LCPs can be
partially functionalized, meanwhile leaving spare mercapto groups, which can be
fu...
http://www.polymer.cn/research/sy_info19355 |
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Novel perfluorocyclobutyl (PFCB)-containing polymers formed by click chemistry
关键字：Poly(alkyl aryl) ethers, Perfluorocyclobutane (PFCB), Click chemistry
The synthesis and characterization of a novel class of linear poly(alkyl aryl) ethers containing 1,2,3-triazolyl and perfluorocyclobutyl units have been described. These polymers were readily prepared from the Huisgen’s 1,3-dipolar cycloaddition of poly(ethylene glycol) diazides and 1,2-bis(4-ethynylphenoxy)perfluorocyclobutane that is defined as ‘click chemistry’ recently....
http://www.polymer.cn/research/sy_info18194 |
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