Ring-Opening Metathesis Polymerization of Butyl-Substituted trans-Cyclooctenes,ACS Macro Letters

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Ring-Opening Metathesis Polymerization of Butyl-Substituted trans-Cyclooctenes
ACS Macro Letters ( IF 5.1 ) Pub Date : 2017-07-13 00:00:00 , DOI: 10.1021/acsmacrolett.7b00420
Wesley S Farrell _{1,

2} , Kathryn L Beers _{1,

2}

Affiliation

The synthesis and ring-opening metathesis polymerization of highly strained 3- and 1-butyl-trans-cyclooctenes was investigated with the goal of quickly preparing regioregular polymers with narrow molar mass distributions, which could serve as precursors for high precision short-chain branched polyethylene. 3-Butyl-trans-cyclooctene was unable to be polymerized in a regioregular manner, however 1-butyl-trans-cyclooctene did yield regioregular product, although the dispersities were higher than expected. Investigation by NMR provided evidence that the nature of the propagating alkylidene is likely nonuniform throughout the course of the reaction, leading to the broadened molar mass distribution.

中文翻译：

丁基取代的反式环辛烯的开环易位聚合

研究了高张力3-和1-丁基反式环辛烯的合成和开环复分解聚合，旨在快速制备具有窄摩尔质量分布的区域规整聚合物，该聚合物可以作为高精度短链支化聚乙烯的前体。 3-丁基-反式-环辛烯不能以区域规则性方式聚合，然而1-丁基-反式-环辛烯确实产生区域规则性产物，尽管分散度高于预期。核磁共振研究提供的证据表明，在整个反应过程中，增长的亚烷基的性质可能是不均匀的，导致摩尔质量分布变宽。

更新日期：2017-07-13

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