α-二亚胺钯催化4-甲基-1-戊烯活性聚合制备超支化聚烯烃
Hyperbranched Polyolefin Generated from Living Polymerization of 4-Methyl-1-Pentene Catalyzed by a α-Diimine Palladium Catalyst
α-二亚胺钯催化剂能够催化支化的α-烯烃（4-甲基1-戊烯）聚合，温度和单体浓度对聚合产物的微观结构的影响被仔细研究。通过链行走机理，升高温度和降低单体浓度有利于形成超支化的聚烯烃。在0 ℃下，α-二亚胺钯催化剂能够催化4-甲基1-戊烯活性聚合制备超支化的聚烯烃。
Branched α-olefin 4-methyl-1-pentene (4MP) was polymerized with a cationic α-diimine palladium catalyst. Influences of polymerization parameters including reaction temperature and monomer concentration on polymer architecture were evaluated in detail. Increasing temperature and lowering monomer concentration can lead to the form of more hyperbranched polyolefin because of chain walking. At 0 ℃, hyperbranched polyolefins were generated from living polymerization of 4-methyl-1-pentene with α-diimine palladium catalyst.
伍青、高海洋、郭丽华
高分子化合物工业
高分子化学活性聚合超支化聚烯烃
polymer chemistryliving polymerizationhyperbranched polyolefins
伍青,高海洋,郭丽华.α-二亚胺钯催化4-甲基-1-戊烯活性聚合制备超支化聚烯烃[EB/OL].(2010-12-23)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201012-894.点此复制
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