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使用负载型催化剂聚合外消旋 β-丁内酯：一种获得全同立构聚合物的简单方法。

Polymerization of racemic beta-butyrolactone using supported catalysts: a simple access to isotactic polymers.

机构信息

University of Minnesota, Minneapolis, MN 55455-0431, USA.

出版信息

Chem Commun (Camb). 2010 Feb 21;46(7):1032-4. doi: 10.1039/b923546a. Epub 2010 Jan 8.

DOI:10.1039/b923546a
PMID:20126703
Abstract

Grafting of [Ln(BH(4))(3)(THF)(3)] (Ln = La, Nd) onto silica affords materials containing well-identified bis(borohydride) surface species. The neodymium-decorated silica converts the beta-butyrolactone monomer into highly isotactic poly(beta-hydroxybutyrate). Under similar conditions, the molecular precursor gives rise to an atactic polymer.

摘要

[Ln(BH(4))(3)(THF)(3)]（Ln = La，Nd）接枝到二氧化硅上得到了具有良好确定的双（硼氢化物）表面物种的材料。用钕修饰的二氧化硅将β-丁内酯单体转化为高度等规的聚（β-羟基丁酸酯）。在类似条件下，分子前体生成无规聚合物。

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