Synthesis and Characterization of PCL-based and PCL/PEG-based Shape Memory Polyurethanes for Smart Textiles

摘要：

A series of PCL-based and PCL/PEG-based segmented shape memory polyurethanes (SMPUs) were prepared from polycaprolactone diol (PCL), polyethylene glycol (PEG), 2, 4-toluene diisocyanate (TDI), 1, 4- butanediol (BDO) and glycerin (GA). Their microstructure, thermal and mechanical properties, and water vapor permeability (WVP) were investigated by DSC, WAXD, water vapor permeability measurement and tensile testing. The results indicated that the PUs with crystalline soft segments were temperature- sensitive, the WVP of PU membranes increased significantly with the experimental temperature reaching crystal melting temperature of soft segment. The PCL/PEG-based segmented PUs exhibited better water vapor permeability than other PUs. Moreover, its obvious that PCL-based PUs showed more excellent mechanical properties than PCL/PEG-based PUs with rising of hard segment content.

关键词： shape memory polyurethane thermal behavior water vapor permeability mechanical properties

作者: CHEN Guoliang HUANG He YU Weidong YAN Haojing

作者单位: Textile Materials and Technology Laboratory, Donghua University, Shanghai 201620, P. R. China Textile Materials and Technology Laboratory, Donghua University, Shanghai 201620, P. R. China Wuhan Donghua University, Shanghai 200051, P. R China

会议类型: 国际会议

会议名称: 2007年先进纤维与聚合物国际会议

会议地点: 上海

会议语种:英文

页码: 539-542

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）