摘要
以双酚A、异山梨醇为混合起始剂,以双金属氰化物络合物(DMC)为催化剂,合成一系列数均分子量(M_(n))约为800 g/mol的聚醚多元醇。通过傅里叶变换红外光谱(FTIR)、核磁共振氢谱(^(1)H-NMR)和凝胶渗透色谱(GPC)等方法对产物结构进行表征,重点探讨混合起始剂比例对聚合反应活性和聚醚多元醇指标的影响。采用上述高性能聚醚多元醇合成聚氨酯弹性体,通过热重分析仪(TG)和万能拉伸试验机对材料的热力学性能进行测试。研究发现,随着复合起始剂中异山梨醇占比的增加,引发反应活性略有下降,聚醚多元醇的黏度相比双酚A聚醚多元醇下降约70%;与常规聚醚多元醇合成的弹性体相比,高性能聚醚多元醇合成的弹性体具有优异的力学性能和热稳定性,为聚氨酯弹性体的高性能化提供了新的思路。
Polyether polyols with molecular weights of 800 g/mol synthesized with bisphenol-A and isosorbide as blend initiator and di-metal cyanide complex(DMC)as catalyst.The structure of the product was characterized by Fourier transform infrared spectroscopy(FTIR),proton nuclear magnetic resonance spectroscopy(^(1)H-NMR),and gel permeation chromatography(GPC).The effects of the ratio of the mixed initiators on the polymerization activity and polyether polyol index were discussed.The above high-performance polyether polyols were synthesized into polyurethane elastomers,and the thermodynamic properties of the materials were tested by thermogravimetric analysis(TG)and universal tensile testing machine.It was found that with the increase of the proportion of isosorbide in the composite initiator,the initiation reaction activity decreased slightly,and the viscosity of polyether polyol decreased by about 70%compared with that of bisphenol A polyether polyol.Compared with the elastomer synthesized by conventional polyether polyols,the elastomer synthesized by high-performance polyether polyols has excellent mechanical properties and thermal stability,which provides a new idea for the high performance of polyurethane elastomers.
作者
戈欢
陈庆柏
公维英
李剑锋
杨健
杨玉滢
孙兆任
张云强
GE Huan;CHEN Qingbai;GONG Weiying;LI Jianfeng;YANG Jian;YANG Yuying;SUN Zhaoren;ZHANG Yunqiang(Shandong INOV New Materials Co.,Ltd.,Zibo 255075,China;Shandong INOV Polyurethane Co.,Ltd.,Zibo 255000,China;School of Materials Science and Engineering,Qilu University of Technology(Shandong Academy of Sciences),Ji'nan 250353,China)
出处
《塑料科技》
北大核心
2025年第7期52-55,共4页
Plastics Science and Technology
基金
山东省自然科学基金(ZR2020QB117)。
关键词
高性能聚醚多元醇
热力学性能
聚氨酯弹性体
High-performance polyether polyols
Thermodynamics properties
Polyurethane elastomer
作者简介
联系人:孙兆任,sunzhaoren@inovpu.com;联系人:张云强,yun_zhang@qlu.edu.cn。
