聚辛二酸木糖醇酯生物弹性体的制备与性能研究  

Preparation and property of poly(xylitol suberic)bioelastomer

作　　者：吴畏 东为富 李婷 陈明清 梅涛锋 林玲 

机构地区：[1]江南大学化学与材料工程学院,无锡214122

出　　处：《化工新型材料》2012年第8期52-54,共3页New Chemical Materials

基　　金：国家自然基金项目(51003042);中央高校自主科研项目资助(JUSRP10906)

摘　　要：以辛二酸和木糖醇为单体,通过熔融缩聚反应,得到一种网络型聚酯生物弹性体(PXO),并对其结构进行表征。研究表明,通过单体摩尔配比和反应条件的控制,材料具有可调的力学性能(拉伸强度0.16～1.72MPa、伸长率166%～212%),亲水性能(水接触角65°～81°)和吸水率(2%～16%);XRD和DSC分析表明,材料在室温下为无定形态和结晶态共存的微相分离结构,且材料的玻璃化转变温度都低于室温,是一种性能优异的生物弹性体。A novel kind of bioelastomer was successfully prepared by melt polyeondensation of xylitol and suberic acid（PXO bioelastomer）. It was revealed that the mechanical properties can be adjusted（tensile strength, 0. 16- 1.72MPa; elongation at break, 166 %-212 %by changing the dosage of suberie acid and crosslinking time,and it was easy to get hy- drophilicity with water contact angle between 58oand 78%, and water-uptake between 1.77% and 25. 82%. XRD and DSC spectra inidcated that there was a micro-phase separation structure originating from crystalline and amorphous regions in it. The glass transition temperatures were blow room temperature,which suggested that PXO was a good kind of elastomer.

关 键 词：弹性体 木糖醇 辛二酸 

分 类 号：TQ334[化学工程—橡胶工业]