Design,synthesis and characterization of novel poly(urethane-urea) based on a macrodiol from poly(lactic acid) and poly(p-dioxanone)

作     者：Yan Feng Luo 

作者机构：Key Lab of Biorheological Science and Technology (Chongqing University) Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China Research Center of Bioinspired Material Science and Engineering College of Bioengineering Chongqing University Chongqing 400030 China Department of Biology Chongqing University of Science and Technology Chongqing 401331 China Received 29 June 2010 

基　　金：supported by the National Key Technologies R&D Program of China(No.2006BA103B04) the Natural Key Scientific and Technological Project of Chongqing(No.CSTC 2008AB0027) 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2011年第22卷第2期

页      码：237-240页

摘      要：A series of novel poly（urethane-urea）（PUU） was synthesized from poly（lactide-co-p-dioxanone） macrodiol（HO-P（LA-co-PDO）-OH）, hexamethylene diisocyanate（HDI） and butanediamine（BDA）.The obtained PUU,which is recorded as P（LA-co-PDO）-PUU here,may demonstrate enhanced phase separation and thus improved shape memory *** was employed to characterize the copolymers,and the effects of NCO/OH molar ratios on Tg of PUU was investigated by means of differential scanning calorimetry （DSC）.The results revealed the successful synthesis of P（LA-co-PDO）-*** addition,the Tg of P（LA-co-PDO）-PUU increased from 37.9℃to 44.2℃with the increase NCO/OH ratios from 1.1 to *** P（LA-co-PDO）-PUU with Tg close to body temperature will have potential applications as shape memory polymers in biomedical fields,especially in minimally invasive surgery.

主 题 词：Poly(urethane-urea) Polylactic acid p-Dioxanone Butanediamine Shape memory polymer 

学科分类：081704[081704] 081705[081705] 07[理学] 08[工学] 0817[工学-轻工类] 070305[070305] 080501[080501] 080502[080502] 0805[工学-能源动力学] 0703[理学-化学类] 

核心收录：

D　O　I：10.1016/j.cclet.2010.10.026

馆 藏 号：203340431...