Ring-Opening Metathesis Polymerization of Nitrile Substituted cis-Cyclooctenes

被引：11
|
作者：
Schneider, Martin F. [1 ]
Gantner, Carola [1 ]
Obrecht, Werner [2 ]
Nuyken, Oskar [1 ]
机构：
[1] Tech Univ Munich, Wacker Lehrstuhl Makromol Chem, D-85748 Garching, Germany
[2] LANXESS Deutschland GmbH, Business Unit TRP, Intellectual Property Strategy, D-51369 Leverkusen, Germany
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2010年 / 31卷 / 19期
关键词：
cyclooctene; cyclopolymerization; nitrile; ring-opening; metathesis polymerization (ROMP); ruthenium catalyst; CROSS-METATHESIS; CATALYSTS; ROMP;
D O I：
10.1002/marc.201000301
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
New nitrile-containing polymers have been synthesized by ring-opening metathesis polymerization of cis-cyanocyclooct-4-ene and cis-1,2- dicyanocyclooct-5-ene with a 2nd generation Grubbs catalyst [(H 2IMes)(PCy3)Cl2Ru=CHPh] (H2IMes=N,N0- bis(mesityl)-4,5-dihydroimidazol-2-ylidene). With increasing content of nitrile moieties on the cyclooctene ring the reaction rates decrease from cis-cyclooctene to cis-cyanocyclooct-4-ene and cis-1,2-dicyanocyclooct-5-ene. Contrary to commercially available nitrile rubbers (unhydrogenated and hydrogenated butadiene/acrylonitrile copolymers) in which double bonds, nitrile moieties, and methylene bridges are randomly distributed along the main chain, the new polymers show a regular distribution of structural entities. © 2010 WILEY-VCH Verlag GmbH & Co. KGa.
引用
收藏
页码：1731 / 1735
页数：5
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