聚-3-羟基丁酸酯及其共聚物的合成与表征  

Synthesis and characterization of poly-3-hydroxybutyrate and its copolymers

作　　者：刘炼[1] 魏志勇[2] 张步峰[3] 杨璠[3] 张春庆[3] 齐民[2] 

机构地区：[1]大连海事大学机电与材料工程学院高分子材料研究所,辽宁大连116026 [2]大连理工大学材料科学与工程学院,辽宁大连116024 [3]大连理工大学化工学院高分子材料系,辽宁大连116012

出　　处：《功能材料》2006年第7期1087-1090,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2004AA32G110);辽宁省自然科学基金资助项目(20032124)

摘　　要：合成一种环烷氧锡化合物,用氢谱、元素分析和质谱对其结构进行表征确认,并以其作为β-丁内酯开环聚合的引发剂制备聚-3-羟基丁酸酯,考察了单体引发剂配比、聚合时间和聚合温度等聚合条件对聚合产物特性粘度的影响。由丁内酯与丙交酯、己内酯共聚制备聚(丁内酯-丙交酯)和聚(丁内酯-己内酯)共聚物,并用FT-IR、1H-NMR、DSC等手段对聚合物的结构及性能进行了表征。In this paper,a distannoxane compound with well-defined structure was synthesized from the reaction of di-n-butyltin oxide with 2,3-butanediol. Poly-3-hydroxybutyrate （P-3-HB） was prepared by ring-opening polymerization of racemic β-butyrolactone （β-BL） using distannoxane as initiator. Effects of initiator concentration, polymerization time and temperature on inherent viscosity of the product were investigated. A series of copolymers of poly（butyrolactone-co-DL-lactide） and poly（butyrolactone-co-caprolactone） were prepared via ring-opening copolymerizations of butyrolactone and DL-lactide or caprolactone with distannoxane as initiator in vacuo. The structure and properties of homopolymers and copolymers were characterized by FT-IR,^1H-NMR and DSC.

关 键 词：丙交酯 环烷氧锡 聚-3-羟基丁酸酯 聚乳酸共聚物 

分 类 号：O63[理学—高分子化学]