Synthesis and transport properties of polynorbornene with different content of cis-trans units

被引：0

作者：

Yampolskii, YP ^{[1
]}

Finkelshtein, ES ^{[1
]}

Makovetskii, KL ^{[1
]}

Ostrovskaya, IY ^{[1
]}

Portnykh, EB ^{[1
]}

Gringolts, ML ^{[1
]}

Ishunina, YG ^{[1
]}

Kevdina, IB ^{[1
]}

Shantarovich, VP ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,NN SEMENOV CHEM PHYS INST,MOSCOW 117912,RUSSIA

来源：

VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B | 1996年 / 38卷 / 09期

关键词：

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polynorbornenes with different contents of cis units were prepared with the catalysts of metathesis ring-opening polymerization, which show different stereoselectivity (Re2O7, RuCl3, WCl6). It was shown that polynorbornene synthesized with WCl6, which contains nearly equal amounts of cia and trans units, is characterized by the highest diffusion coefficients for gases. The polymers, that predominantly consist of cia units in the backbone chain show higher gas permeabilities P, higher diffusion D and solubility coefficients S for gases. The separation factors alpha(ij) = P-i/P-j are maximal for the polymers with trans configuration of the chains, which exhibit minimal P-i values.

引用

页码：1480 / 1485

页数：6

共 16 条

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