Living Chain-Walking (Co)Polymerization of Propylene and 1-Decene by Nickelα-Diimine Catalysts

被引：5
|
作者：
Li, Pei [1 ]
Li, Xiaotian [1 ]
Behzadi, Shabnam [2 ]
Xu, Mengli [1 ]
Yu, Fan [1 ]
Xu, Guoyong [1 ]
Wang, Fuzhou [1 ]
机构：
[1] Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China
[2] Univ Sci & Technol China, Dept Polymer Sci & Engn, CAS Key Lab Soft Matter Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
来源：
POLYMERS | 2020年 / 12卷 / 09期
基金：
中国国家自然科学基金;
关键词：
living (co)polymerization; chain-walking; propylene; 1-alkene; branched polyolefins; ETHYLENE COPOLYMERIZATION; OLEFIN POLYMERIZATION; PALLADIUM; LIGAND; POLYETHYLENE; COMPLEXES; INSERTION; SUBSTITUENTS;
D O I：
10.3390/polym12091988
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Homo- and copolymers of propylene and 1-decene were synthesized by controlled chain-walking (co)polymerization using phenyl substituted alpha-diimine nickel complexes activated with modified methylaluminoxane (MMAO). This catalytic system was found to polymerize propylene in a living fashion to furnish high molecular weight ethylene-propylene (EP) copolymers. The copolymerizations proceeded to give high molecular weight P/1-decene copolymers with narrow molecular weight distribution (M-w/M-n approximate to 1.2), which indicated a living nature of copolymerization at room temperature. The random copolymerization results indicated the possibility of precise branched structure control, depending on the polymerization temperature and time.
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页码：1 / 11
页数：11
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