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| Ziegler-Natta催化乙烯/长链1-烯烃共聚合——长链1-烯烃的共聚活性 | |
| 引用本文： | 徐志康,封麟先,杨士林. Ziegler-Natta催化乙烯/长链1-烯烃共聚合——长链1-烯烃的共聚活性[J]. 高分子学报, 1993, 0(5): 633-635 |
| 作者姓名： | 徐志康 封麟先 杨士林 |
| 作者单位： | 浙江大学高分子科学与工程学系，浙江大学高分子科学与工程学系，浙江大学高分子科学与工程学系 杭州，邮政编码:310037，杭州，邮政编码:310037，杭州，邮政编码:310037 |
| 摘 要： | <正> 乙烯/1-烯烃共聚合是近年来活跃的研究课题之一,随1-烯烃种类不同及其在共聚物中含量的变化,共聚产物主要有橡胶弹性体(如乙丙胶)、线性低密度聚乙烯(LLDPE)等。研究结果表明,与短支链共聚单体相比,由长支链共聚单体获得的LLDPE具有更加优越的加工性能、整体韧性和抗撕裂性,由于侧基的位阻作用,长链1-烯烃参 |
| 关 键 词： | Ziegler-Natta催化剂 乙烯共聚合 竟聚率 |
| 收稿时间： | 1992-12-14 |
COPOLYMERIZATION OF ETHYLENE WITH 1-ALKENES USING ZIEGLER-NATTA CATALYSTS |
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| XU Zhi-kang,FENG Lin-xian,YANG Shi-lin. COPOLYMERIZATION OF ETHYLENE WITH 1-ALKENES USING ZIEGLER-NATTA CATALYSTS[J]. Acta Polymerica Sinica, 1993, 0(5): 633-635 | |
| Authors: | XU Zhi-kang FENG Lin-xian YANG Shi-lin |
| Affiliation: | Department of Polymer Science and Engineering; Zhejiang University; Hangzhou; Post code: 310027 |
| Abstract: | Copolymerization of ethylene with linear 1-alkenes in the presence of different Ziegler-Natta catalysts, TiCl3-AlEt2Cl,VOCl3-Al2Et3Cl3and Ti(VMgCl2-AlR3 ,at 30℃ were investigated, and reactivity ratios for all pairs ethylene-1-alkene were determined . It was found that, for heterogeneous catalysts, the copolymerization reactivity of linear 1-alkenes was greatly improved when a small amount of propylene was present in the polymerization, while for homogeneous catalyst VOCl3, no change was observed. It seems that a synergistic effect existed in the reactivities of propylene, linear 1-alkene and active site in the polymerization with ethylene. |
| Keywords: | Ziegler-Natta catalysts Ethylene copolymerization Reactivity ratio |
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