Introduction of reactive functionality by the incorporation of divinylbiphenyl in ethylene copolymerization with styrene or 1-hexene using aryloxo-modified half-titanocenes and MAO catalysts

被引:8
作者
Apisuk, Wannida [1 ,2 ]
Kitiyanan, Boonyarach [2 ]
Kim, Hyun Joon [3 ]
Kim, Dong Hyun [3 ]
Nomura, Kotohiro [1 ]
机构
[1] Tokyo Metropolitan Univ, Dept Chem, Hachioji, Tokyo 1920397, Japan
[2] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand
[3] Korea Inst Ind Technol, Ansan 426910, Gyeonggi Do, South Korea
基金
日本学术振兴会;
关键词
catalysts; copolymer; copolymerization; ethylene; functional polymer; functionalization of polymers; graft copolymers; metal-catalyzed polymerization; metal-organic catalysts; organometallic catalysts; polyolefins; titanium; OLEFIN POLYMERIZATION; METALLOCENE COMPLEXES; POLAR FUNCTIONALITIES; NONCONJUGATED DIENES; MONOMER REACTIVITIES; PRECISE SYNTHESIS; DONOR LIGANDS; ALPHA-OLEFINS; POLYOLEFINS; CYCLOPENTADIENYL;
D O I
10.1002/pola.26639
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
An efficient introduction of vinyl group into poly (ethylene-co-styrene) or poly(ethylene-co1-hexene) has been achieved by the incorporation of 3,3-divinylbiphenyl (DVBP) in terpolymerization of ethylene, styrene, or 1-hexene with DVBP using aryloxo-modified half-titanocenes, CpTiCl2(O2,6-iPr2C6H3) [Cp=Cp*, tBuC5H4, 1,2,4-Me3C5H2], in the presence of MAO cocatalyst, affording high-molecular-weight polymers with unimodal distributions. Efficient comonomer incorporations have been achieved by these catalysts, and the content of each comonomer could be varied by its initial concentration charged. The postpolymerization of styrene was initiated from the vinyl group remained in the side chain by treatment with n-BuLi. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 25812587
引用
收藏
页码:2581 / 2587
页数:7
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