乙烯与极性单体共聚的研究

Q3 Materials Science Kobunshi Ronbunshu Pub Date : 2018-11-25 DOI:10.1295/KORON.2018-0032
Bruce S Xin, Naomasa Sato, A. Tanna, Yasuo Oishi, Yohei Konishi, F. Shimizu
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引用次数: 0

摘要

我们研究了乙烯和烷基丙烯酸酯的共聚反应,发现含有亚胺甲酰胺配体的Ni配合物可以催化这种共聚反应形成线性共聚物。由于该催化剂体系缺乏耐高温性,需要40℃左右的低温聚合温度,我们进一步探索了更好的Ni催化剂体系。我们最终发现,磷酚连接的中性镍配合物可以在较高温度下催化乙烯和丙烯酸酯共聚生成高度线性的共聚物。通过在配体中引入甲氧基,我们能够在催化剂活性、共聚物分子量和丙烯酸酯含量方面显著提高催化剂的性能。
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A Study on the Copolymerization of Ethylene and Polar Monomers
We investigated the copolymerization of ethylene and alkyl acrylates and found that a Ni complex containing the ¡ - iminocarboxamide ligand can catalyze such copolymerization to form linear copolymers. Since this catalyst system needs low polymerization temperatures around 40 ° C because it lacks in high temperature tolerance, we further explored better Ni catalyst systems. We fi nally found that phosphinophenol - ligated neutral Ni complexes can catalyze copolymerization of ethylene and acrylates to produce highly linear copolymers at higher temperatures. By introducing methoxy groups into the ligand, we were able to improve the catalyst performance signi fi cantly in terms of catalyst activity, molecular weight of the copolymer, and acrylate content.
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来源期刊
Kobunshi Ronbunshu
Kobunshi Ronbunshu 化学-高分子科学
CiteScore
0.60
自引率
0.00%
发文量
0
审稿时长
6-12 weeks
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