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Crystallization kinetics of narrow molecular weight distribution metallocene short-chain-branched polyethylene

文献类型：期刊论文

作者Zhang FJ ; Liu JP ; Fu Q ; He TB
刊名acta polymerica sinica
出版日期2000
期号6页码:722-726
关键词ETHYLENE-OCTENE COPOLYMERS FRACTIONS MELT
ISSN号1000-3304
通讯作者zhang fj
中文摘要isothermal and non-isothermal crystallization kinetics of three metallocene-catalysed short-chain-branched polyethylene (scbpe) fractions with different degree of branching were investigated by using differential scanning calorimetry (dsc). narrow molecular weight fractions (m-w = 20,000 and m-w/m-n < 1.15) are used and the degree of branching (ch3 per 1000c) are 1.6, 10.4, 40 respectively. the regime i - ii transition temperature are 119.8c, 115.9 degreesc, 113.3 degreesc with the decreasing of degree of branching. increasing the branch content decreases the rate of secondary nucleation, i,relative to the rate of surface spreading and so increases the range of supercooling over which regime i exists. the rate of bulk crystallization for both isothermal and non-isothermal crystallization decreases with the increasing of degree of branching. both ozawa equation and kissinger equation are invalid for non-isothermal crystallization kinetics of scbpe fractions,that means the effects of the branched chain on crystallization process are more complex than expected.
收录类别SCI收录期刊论文
语种中文
WOS记录号WOS:000165910900013
公开日期2010-11-04
源URL[http://202.98.16.49/handle/322003/19429]  
专题长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式
GB/T 7714		 Zhang FJ,Liu JP,Fu Q,et al. Crystallization kinetics of narrow molecular weight distribution metallocene short-chain-branched polyethylene[J]. acta polymerica sinica,2000(6):722-726.
APA Zhang FJ,Liu JP,Fu Q,&He TB.(2000).Crystallization kinetics of narrow molecular weight distribution metallocene short-chain-branched polyethylene.acta polymerica sinica(6),722-726.
MLA Zhang FJ,et al."Crystallization kinetics of narrow molecular weight distribution metallocene short-chain-branched polyethylene".acta polymerica sinica .6(2000):722-726.

入库方式： OAI收割

来源：长春应用化学研究所

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