Synthesis of poly(D,L-lactide) with controlled molecular weight and type of end-groups

A. A. Atamanova, O. A. Spirin, N. G. Sedush
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Abstract

The synthesis of poly(D,L-lactide) with a predetermined molecular weight ranging from 5 to 143 kDa was conducted by ringopening polymerization of lactide in the presence of varying concentrations of the 1,12-dodecanediol activator. To synthesize poly(D,L-lactide) with COOH-end groups, polymerization was carried out in the presence of L-lactic acid. The synthesised polymer was found to contain an order of magnitude higher concentration of COOH groups than poly(D,L-lactide) synthesised in the presence of 1,12-dodecanediol.
具有可控分子量和端基类型的聚(D,L-内酰胺)的合成
在不同浓度的 1,12-十二烷二醇活化剂存在下,通过开环聚合法合成了预定分子量为 5 至 143 kDa 的聚(D,L-内酰胺)。为了合成具有 COOH 端基的聚(D,L-内酰胺),聚合反应是在有 L-乳酸存在的情况下进行的。与在 1,12-十二烷二醇存在下合成的聚(D,L-内酰胺)相比,合成聚合物所含的 COOH 基团浓度要高出一个数量级。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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