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Synthes is and light-emitting porperties of an anthrancene-containing hyperbranched poly(aryleneethyny lene)
关键字：hyperbranched polymer, cross-coupling, blue light emission
Many light-emitting molecules and polymers are highly emissive in their dilute solutions but become weakly luminescent when fabricated into thin films. This is believed to be caused by aggregate formation: in the solid state,&nbs...
http://www.polymer.cn/research/dis_info2608 |
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Synthesis and Characterization of p-biphenyl Di 4-[2-(Allyloxy Ethoxy)Benzoate]Liquid Crystalline Polymer
关键字：Synthesis,Characterization,biphenyl,Allyloxy,Ethoxy,Benzoate,Liquid,Crystalline,Polymer,
Thermotropic liquid crystalline polymers (LCPs) with rigid molecular backbones exhibit unique physical, mechanical, rheological and thermal properties. The use of LCPs has attracted considerable attention in the past two decades.
http://www.polymer.cn/research/dis_info1965 |
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Liquid Crystalline Phase Transitions of a Series of Azobenzene-Containing Side-Chain Liquid Crystalline Homopolymers
关键字：Side-chain liquid crystalline polymer； Smectic phase； Nematic phase.
A series of polymethacrylates with 4-methoxy-azobenzene mesogens (PMnAz) (n = 6, 8, 10) endly attached to the polymer backbone through different length spacers were synthesized by free radical polymerization.
http://www.polymer.cn/research/dis_info1952 |
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Crystallization Behavior of a Mesogen-Jacketed Liquid Crystalline-Crystalline Diblock Copolymers
关键字：Block copolymer； Poly(ethylene oxide)； Mesogen-jacketed liquid crystalline polymer； Crystal morphology.
A poly(ethylene oxide) diblock copolymer containing a short block of poly{2,5-bis[(4-methoxyphenyl) oxycarbonyl]styrene} (PEO-b-PMPCS) has been synthesized via atom transfer radical polymerization (ATRP) method.
http://www.polymer.cn/research/dis_info1947 |
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Polymer/Carbon Nanotube Composites with High Dielectric Constant and Low Dielectric Loss Prepared by Electrospun-in-situ Film-forming Technique
关键字：CNT, Composites, Dielectric properties, Electropinning
http://www.polymer.cn/Industry/industry3545.html |
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A novel precursor polymer for continuous SiBN(C) ceramic fiber via co-condensation of B(NHCH3)3 and
关键字：SiB(C)N precursor; SiB(C)N fibers; melt-spinning
http://www.polymer.cn/Industry/industry3426.html |
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Anionic Copolymerization of Carbonyl Sulfide with Epoxides via Alkali Metal Alkoxides
关键字：carbonyl sulfide, copolymerization, alkali metal alkoxides, sulfur-containing polymer
Carbonyl sulfide (COS), an analogue of carbon dioxide (CO2), can be converted to CO2 via the carbonic anhydride enzymes widely existing in nature. COS is an ideal monomer for making poly(monothiocarbonate)s, which are difficult to synthesize by traditional methods. Herein, for the first time, we describe an anionic copolymerization of COS with epoxides using alkali metal alkoxides as the catalys...
http://www.polymer.cn/research/sy_info19591 |
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Soluble N-substituted poly(benzimidazole imide)s via C-N coupling reaction
关键字：N-substituted poly(benzimidazole imide)s; heat-resistant polymer; C?N coupling reaction; good solubility
Novelheat-resistantN-substitutedpoly(benzimidazole imide)s (PBIIs)withgoodsolubilitywere synthesized via aC?Ncoupling reaction. A model reaction was carried out to assist in determining the optimal reaction conditions for the polymerization and to elucidate the chemical structures of the polymers. The structures of the resulting polymers were characterized by means of Fourier transform infrared ...
http://www.polymer.cn/research/sy_info19476 |
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Facile synthesis of heat-resistant and photoluminescent poly(N-aryleneindole ether)s via catalyst-free C–N/C–O coupling reaction
关键字：C-N/C-O coupling reaction; heat-resistant polymer
We present here a novel programmable polymerization route for the synthesis of new indole-based polymers via a catalyst-free nucleophilic substitution reaction. The polycondensation of 4-hydroxyindole with different activated difluoro monomers undergoes in N-methylpyrrolidinone, affording soluble poly(N-aryleneindole ether)s (PEINs) with high molecular weights (Mw up to 486,000) in high yields (...
http://www.polymer.cn/research/sy_info19471 |
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Synthesis and Characterization of Comb-like Methoxy Polyethylene Glycol-grafted Polyurethanes via ‘Click’ Chemistry
关键字：Polyurethane, ‘Click’ chemistry, comb-like polymer
In this study, a series of comb-likemethoxy polyethylene glycol (MPEG)functionalized polyurethanes (PUs) (PU–g–MPEG)were successfully prepared via ‘click’ chemistry and polyaddition reaction. The copper catalyzed Huisgen 1,3-dipolar cycloaddition was firstly
carried out between 3,5-bis(hydroxymethyl)-1-propargyloxybenzene (PBM) and methoxy polyethylene glycol azide (MPEG–N3) to obta...
http://www.polymer.cn/research/sy_info19405 |
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