生物降解高分子/笼型倍半硅氧烷纳米复合材料的制备、结晶行为与性能研究进展  

Progress in Preparation,Crystallization Behavior and Properties of Biodegradable Polymer/Polyhedral Oligomeric Silsesquioxanes Nanocomposites

作　　者：于静[1] 邱兆斌[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京化工大学化工资源有效利用国家重点实验室,北京1000029

出　　处：《高分子通报》2013年第4期11-17,共7页Polymer Bulletin

基　　金：国家自然科学基金委员会创新研究群体科学基金(51221002)

摘　　要：由于相对较高的价格、较慢的结晶速率、较弱的力学性能、较差的热稳定性、较窄的加工窗口和较慢的生物降解速率等自身的弱点,生物降解高分子材料并未如通用高分子材料一样得到广泛应用,制备以生物降解高分子为基体的纳米复合材料是有效的改性方法之一。本文结合作者近年来在生物降解高分子改性领域中的工作,对以笼型倍半硅氧烷(POSS)作为纳米填料改性左旋聚乳酸(PLLA)和聚ε-己内酯(PCL)的研究进行简单综述,POSS可有效提高PLLA和PCL基体的结晶速率和力学性能,并促进了聚合物基体的水解过程。The wider practical application of biodegradable polymers has been restricted because of their disadvantages, such as high cost, slow crystallization, slow degradation rate, poor mechanical properties, and thermal instability. The fabrication of biodegradable polymer nanocomposites is one of the most effective methods to modify hiodegradable polymers. Based on the recent studies on the modification of biodegradable polymers in our lab, this review summarizes the recent progress of poly（Lqactic acid） （PLLA） and poly（ε-caprolactone） （PCL） based nanocomposites by incorporating polyhedral oligomeric silsesquioxanes （POSS） with different functional groups as nanofillers. It has been found that POSS can enhance the crystallization and hydrolytic degradation processes and improve the mechanical properties of both PLLA and PCL effectively.

关 键 词：生物降解高分子 笼型倍半硅氧烷 纳米复合材料 结晶行为 性能 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TB33