Synthesis and ring-opening metathesis polymerization (ROMP) of new N-fluoro-phenylnorbornene dicarboximides by 2nd generation ruthenium alkylidene catalysts

被引：10

作者：

Vargas, J. ^{[1
]}

Santiago, A. A. ^{[1
]}

Gavino, R. ^{[2
]}

Cerda, A. M. ^{[1
]}

Tlenkopatchev, M. A. ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico

来源：

EXPRESS POLYMER LETTERS | 2007年 / 1卷 / 05期

关键词：

polymer synthesis; molecular engineering; polynorbornene dicarboximide; ROMP; ruthenium alkylidene; hydrogenation;

D O I：

10.3144/expresspolymlett.2007.40

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The synthesis of new N-3,5-bis(trifluoromethyl)phenyl-endo-norbornene-5,6-dicarboximide (TFMPhNDI, 2a), N-4-fluorophenyl-endo-norbornene-5,6-dicarboximide (FPhNDI, 2b) and N-2,2,6,6-tetramethylpiperidyl-endo-norbornene5,6-dicarboximide (TMPNDI, 2c) monomers was carried out. Polynorbornene dicarboximides were obtained via ring opening metathesis polymerization (ROMP) using a second generation ruthenium alkylidene catalyst (1,3-dimesityl-4,5-dihydroimidazol-2-ylidene) (PCy3Cl2Ru = CHPh) (I). Poly-TMPNDI which bears a piperidyl moiety showed the highest T-g and T-d compared to the polymers bearing fluoro-aryl moieties. Thermal stability of Poly-TFMPhNDI (3a) was enhanced after hydrogenation with Wilkinson's catalyst.

引用

页码：274 / 282

页数：9

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