POLYOLEFINS

作品数：26被引量：36H指数：3
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相关领域：理学历史地理更多>>
相关作者：黄启谷王桢文赵军杨万泰余朦山更多>>
相关机构：北京化工大学国家纳米科学中心北京科技大学上海电缆研究所更多>>
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相关基金：国家自然科学基金广东省高等学校科技创新团队项目国家重点基础研究发展计划更多>>
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Controllable Preparation of Branched Polyolefins with Various Microstructural Units via Chain-walking Ethylene and Pentene Polymerizations
《Chinese Journal of Polymer Science》2023年第6期905-914,I0008,共11页Hong-Ju Liu Wan-Lu Tian Xiao-Yue Wang Tong Lei Pei Li Guo-Yong Xu Chao Li Shao-Jie Zhang Fu-Zhou Wang 
financially supported by the National Natural Science Foundation of China(No.21801002);the Overseas Students Innovation and Entrepreneurship Support Program Project of Anhui Province(No.2021LCX022);the Key R&D Projects in Anhui Province(No.2022i01020012);the Natural Science Foundation of Hefei(No.2022039)。
Branched polyolefins with controllable topology structures were generated from the chain-walking(co)polymerizations of ethylene,1-pentene(1P)and 2-pentene(2P)using Brookhart-typeα-diimine Ni(II)-based catalysts posse...
关键词：polymerization INSERTION CHAINS 
Enhancement on Hemilabile Phosphine-Amide Palladium and Nickel Catalysts for Ethylene(Co)Polymerization with Polar Monomers Using a Cyclizing Strategy被引量：3
《Chinese Journal of Polymer Science》2022年第3期241-247,I0005,共8页Lei Cui Yu-Kai Chu Da-Jun Liu Ying-Feng Han Hong-Liang Mu Zhong-Bao Jian 
financial support from the National Natural Science Foundation of China (Nos. 22122110 ad 21871250);the Jilin Provincial Science and Technology Department Program (No. 20200801009GH);Shaanxi Provincial Natural Science Basic Research Program-Shaanxi Coal and Chemical Industry Group Co., Ltd. Joint Fund (No. 2019JLZ-02)。
To address the issue of hemilabile catalyst in olefin polymerization catalysis, a cyclizing strategy was used to construct novel N-bridged phosphine-carbonyl palladium and nickel catalysts, resulting in improvements o...
关键词：POLYOLEFINS Cyclizing strategy Phosphine ligands Polar monomers Late transition metal catalysts 
HIGH VISCOUS STRESS OF ORIENTED POLYOLEFINS UNDER UNIAXIAL TENSILE DEFORMATION
《Chinese Journal of Polymer Science》2007年第3期285-290,共6页傅强 
This work was financially supported by the National Natural Science Foundation of China (Nos. 20404008, 50533050 and 20490220);This work was subsidized by the Special Funds for Major State Basic Research Projects of China (No. 2003CB615600).
In this communication, by means of stress relaxation experiments, the viscous stress at various strains during tensile deformation of oriented polyolefin samples including high density polyethylene （HDPE）, linear lo...
关键词：Viscous stress POLYOLEFIN Tensile deformation 
ETHYLENE POLYMERIZATION AND COPOLYMERIZATION WITH POLAR MONOMERS BY A NEUTRAL NICKEL CATALYST COMBINED WITH CO-CATALYST OF Ni(COD)_2 OR AL(i-Bu)_3
《Chinese Journal of Polymer Science》2005年第3期301-310,共10页Yu-huaShan 孙俊全 Yong-jinXu Yong-gangCui FengLin 
This work was supported by the NSFC(No.20074028;20374043);SINOPEC(X500030).
A neutral nickel(Ⅱ)catalyst D,{[O-(3-cyclohexyl)(5-Cl)C_6H_2-ortho-C(H)=N-2,6-C_6H_3(i-Pr)_2]Ni(Ph_3P)(Ph)}hasbeen synthesized and characterized by IH-NMR,FTIR and elemental analysis.The results indicate that Al(i-Bu...
关键词：Neutral nickel catalyst Polar monomer COPOLYMERIZATION Polyethylene Functional polyolefins. 
UNUSUAL CRYSTALLIZATION AND MELTING PROCESSES OF AN OPTICALLY ACTIVE POLYOLEFIN:ISOTACTIC POLY((S)-4-METHYL-HEXENE-1)
《Chinese Journal of Polymer Science》2005年第2期165-170,共6页Annamaria Buono JrjengRuan AnnetteThierry Peter Neuenschwander Bernard Lotz 
Polyolefins that bear a chiral side chain(typically an isobutyl group)experience a so-called macromolecularamplification of chirality:the chiral side-chain induces a slight preference for either tg or tg(?) main chain...
关键词：Liquid crystalline polyolefins CRYSTALLIZATION Melting Amplification of chirality. 
CRYSTALLIZATION AND MECHANICAL PROPERTIES OF BLENDS OF METALLOCENE SHORT CHAIN BRANCHED POLYETHYLENE WITH CONVENTIONAL POLYOLEFINS被引量：1
《Chinese Journal of Polymer Science》2004年第5期431-438,共8页YaPeng 傅强 
This work was supported by the China National Distinguished Young Investigator Fund (No. 29925413) and the NationalNatural Science Foundation of China (No.20274028).
Metallocene-catalyzed short chain branched polyethylene (SCBPE) was blended with LDPE, HDPE, PS, EPDM and iPP in the weight proportions of 80 and 20. The crystallization and mechanical properties of these blends were ...
关键词：SCBPE CRYSTALLIZATION morphology tensile modulus 
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