| 不同催化体系对乙丙共聚物序列分布的影响 |
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| 引用本文： | 石明孝,戚国荣,杨士林,王林钿. 不同催化体系对乙丙共聚物序列分布的影响[J]. 高分子学报, 1984, 0(4): 296-299 |
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| 作者姓名： | 石明孝 戚国荣 杨士林 王林钿 |
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| 作者单位： | 浙江大学化学系(石明孝，戚国荣，杨士林)，浙江丝绸科学院(王林钿) |
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| 摘 要： | <正> 乙丙橡胶的性能不仅取决于共聚物的组成、分子量及其分布,而且依赖于共聚物的微结构。Natta等认为共聚物中乙烯和丙烯单体链节呈无规分布时可获得性能最好的弹性体。但因催化剂及聚合条件不同,共聚物的单体链节总是存在不同程度的无规、交替及长序列分布。本文采用红外吸收光谱研究了乙丙共聚物的组成及不同催化体系和加入添加剂后对乙丙共聚物序列分布的影响。
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| 收稿时间： | 1983-04-22 |
EFFECT OF VARIOUS CATALYST SYSTEMS ON SEQUENCE DISTRIBUTION OF ETHYLENE-PROPYLENE COPOLYMERS |
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| Shi Ming-xiao,Qi Gou-rong,Yang Shi-lin. EFFECT OF VARIOUS CATALYST SYSTEMS ON SEQUENCE DISTRIBUTION OF ETHYLENE-PROPYLENE COPOLYMERS[J]. Acta Polymerica Sinica, 1984, 0(4): 296-299 |
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| Authors: | Shi Ming-xiao Qi Gou-rong Yang Shi-lin |
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| Affiliation: | Department of Chemistry; Zheiiang University; Silk Research Institute; Zhejiang |
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| Abstract: | The compositions of ethylene-propylene copolymers prepared in this work were determined by in'frared spectroscopy. Atactie polypropylene with head-to-tail linking, 2,5-dimethylhexane, squalane and tetradecane were used as model compounds to determine the sequence distribution of ethylene-propylene copolymers according to the method used by Bucci et al.. The effects of various catalyst systems, with or without organic compounds as activators, on the sequence distribution of ethylene-propylene copolymers have been discussed. |
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