Copolymerization of 1,3-butadiene and norbornene catalyzed by Ni complexes[1]

被引：11
|
作者：
Yamakawa, Shinji [1 ]
Takeuchi, Daisuke [1 ,2 ]
Osakada, Kohtaro [1 ]
Takano, Shigenaga [3 ]
Kaita, Shojiro [3 ]
机构：
[1] Tokyo Inst Technol, Inst Innovat Res, Lab Chem & Life Sci, Midori Ku, 4259 Nagatsuda, Yokohama, Kanagawa 2268503, Japan
[2] Hirosaki Univ, Grad Sch Sci & Technol, Dept Frontier Mat Chem, 3 Bunkyo Cho, Hirosaki, Aomori 0368561, Japan
[3] Bridgestone Cooperat, Adv Technol Dev, 3-1-1 Ogawahigashi Cho, Kodaira, Tokyo 1878531, Japan
来源：
REACTIVE & FUNCTIONAL POLYMERS | 2019年 / 136卷
基金：
日本学术振兴会;
关键词：
Ni catalyst; 1,3-butadiene; Norbornene; Copolymerization; C-13; NMR; CONJUGATED DIENES; POLYMERIZATION; COMPLEXES; BUTADIENE; STYRENE; MECHANISM; ISOPRENE;
D O I：
10.1016/j.reactfunctpolym.2018.12.006
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
(bpy)NiBr2 catalyzes the copolymerization of butadiene and norbornene (56:44) in the presence of methylaluminoxane at 30 degrees C. H-1 NMR spectrum of the copolymer contains signals of norbornene units and 1,4-butadiene units and shows the molar ratio of the two monomer units to be 56:44. Copolymerization with a higher portion of norbornene monomer catalyzed by (bpy)NiBr2 affords a solid copolymer rich in norbornene unit, whereas the copolymerization with a higher portion of butadiene forms an oily copolymer rich in butadiene unit. Composition of the monomer units of the copolymer in terms of butadiene/norbornene ratio varies from 12:88 to 91:9, depending on the initial ratio of the monomers; this finding is different from the previous results obtained using Ni catalyst.
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页码：19 / 24
页数：6
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