A Non-isocyanate Route to Poly(ester urethane) with High Molecular Weight: Synthesis and Effect of Chemical Structures of Polyester-diol  

作　　者：Zi-Yun Shen Qi-Yong Mei Yi Liu Liu-Chun Zheng Chun-Cheng Li Jia-Jian Liu Yao-Nan Xiao Shao-Hua Wu Bo Zhang 

机构地区：[1]Beijing National Laboratory for Molecular Sciences,Key Laboratory of Engineering Plastics,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China [2]Department of Neurosurgery,Changzheng Hospital,the Second Military Medical University,Shanghai 200003,China [3]School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China

出　　处：《Chinese Journal of Polymer Science》2022年第1期75-84,共10页高分子科学（英文版）

基　　金：the National Natural Science Foundation of China(Nos.52173009,81971711,21574137,51373186);Beijing Natural Science Foundation(No.2192065);National Key R&D Program of China(No.2016YFB1100800)。

摘　　要：A series of non-isocyanate linear high molecular weight poly(ester urethane)s(PETUs)were prepared through an environmentallyfriendly route based on dimethyl carbonate,1,6-hexanediol and 1,6-hexanediamine.In this route,the polyurethane diol was first prepared by the reaction between bis-1,6-hexamethylencarbamate(BHC)and 1,6-hexanediol.A series of polyester soft segments of polyurethane have been synthesized from the polycondensation of adipic acid and different diols,including butanediol,hexanediol,octanediol and decanediol.The subsequent polycondensation of polyurethane diol and polyester diol led to linear PETUs.The resultant polymers were characterized by GPC,FTIR,^(1)H-NMR,^(13)C-NMR,DSC,WAXD,TGA and tensile test.The results indicated that PETUs possess weight-average molecular weights higher than 1×10^(5) and the tensile strength as high as 10 MPa.The thermal properties,crystallization behavior,microphase separation behavior and morphology were studied by DSC and AFM,and the results indicated that the degree of phase separation was affected by two factors,the crystallization and hydrogen bonding interaction between soft segment and hard segment.

关 键 词：Non-isocyanate Poly(ester urethane) Polyester-diol 

分 类 号：TQ317[化学工程—高聚物工业]