Synthesis and Characterization of Short-chain Branched Polyethylene


Autoria(s): Xue YN; Wang YH; Liu F; Li Y; Tang T
Data(s)

2009

Resumo

Two kinds of ethylene copolymers with controllable structures were synthesized and the molecular parameters were characterized by FTIR, GPC, H-1 NMR and C-13 NMR systematically. Effects of molecular and the content of branched short chains on the crystalline properties of the resultant ethylene copolymers were investigated by DSC, respectively. First, polybutadienes with M-w ranging from 20000 to 110000, low polydispersity index(PDI = 1.1) and almost the same content of vinyl (molar fraction about 7%) were synthesized by anionic polymerization. After hydrogenation, the melting point and crystallinity of the obtained model ethylene/1-butene copolymers decreased with the increase in M-w of the copolymers.

Identificador

http://202.98.16.49/handle/322003/11431

http://www.irgrid.ac.cn/handle/1471x/147954

Idioma(s)

中文

Fonte

Xue YN;Wang YH;Liu F;Li Y;Tang T.Synthesis and Characterization of Short-chain Branched Polyethylene,CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE ,2009,30(9):1870-1875

Palavras-Chave #ALPHA-OLEFIN #COPOLYMERS #ETHYLENE #CATALYST #SYSTEM
Tipo

期刊论文