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Shen Z, Zheng L, Song D, Liu Y, Li C, Liu J, Xiao Y, Wu S, Zhou T, Zhang B, Lv X, Mei Q. A Non-Isocyanate Route to Poly(Ether Urethane): Synthesis and Effect of Chemical Structures of Hard Segment. Polymers (Basel) 2022; 14:polym14102039. [PMID: 35631921 PMCID: PMC9143292 DOI: 10.3390/polym14102039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/18/2022] [Accepted: 04/28/2022] [Indexed: 12/04/2022] Open
Abstract
A series of non-isocyanate poly(ether urethane) (PEU) were prepared by an environmentally friendly route based on dimethyl carbonate, diols and a polyether. The effect of the chemical structure of polyurethane hard segments on the properties of this kind of PEU was systematically investigated in this work. Polyurethane hard segments with different structures were first prepared from hexamethylene di-carbamate (BHC) and different diols (butanediol, hexanediol, octanediol and decanediol). Subsequently, a series of non-isocyanate PEU were obtained by polycondensation of the polyurethane hard segments with the polyether soft segments (PTMG2000). The PEU were characterized by GPC, FT-IR, 1H NMR, DSC, WAXD, SAXS, AFM and tensile testing. The results show that the urea groups generated by the side reaction affect the degree of crystallization of hard segments by influencing the hydrogen bonding of the hard segments molecular chains. The degree of hard segment crystallization, in turn, affects the thermal and mechanical properties of the polymer. The urea group content is related to the carbon chain length of the diol used for the synthesis of hard segments. When butanediol is applied to synthesize hard segment, the hard segment of the resulting PEU is unable to crystallize. Therefore, the tensile strength and modulus of elasticity of butanediol-based PEU is lowest among three, though it possesses the highest urea group content. When longer octanediol or decanediol is applied to synthesize the hard segment, the hard segments in the resulting polyether-based polyurethane are crystallizable and the resulting PEU possesses higher tensile strength.
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Affiliation(s)
- Ziyun Shen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China; (Z.S.); (L.Z.); (J.L.); (Y.X.); (S.W.); (B.Z.)
| | - Liuchun Zheng
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China; (Z.S.); (L.Z.); (J.L.); (Y.X.); (S.W.); (B.Z.)
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; (D.S.); (Y.L.); (T.Z.); (X.L.)
| | - Danqing Song
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; (D.S.); (Y.L.); (T.Z.); (X.L.)
| | - Yi Liu
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; (D.S.); (Y.L.); (T.Z.); (X.L.)
| | - Chuncheng Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China; (Z.S.); (L.Z.); (J.L.); (Y.X.); (S.W.); (B.Z.)
- Correspondence: (C.L.); (Q.M.)
| | - Jiajian Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China; (Z.S.); (L.Z.); (J.L.); (Y.X.); (S.W.); (B.Z.)
| | - Yaonan Xiao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China; (Z.S.); (L.Z.); (J.L.); (Y.X.); (S.W.); (B.Z.)
| | - Shaohua Wu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China; (Z.S.); (L.Z.); (J.L.); (Y.X.); (S.W.); (B.Z.)
| | - Tianbo Zhou
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; (D.S.); (Y.L.); (T.Z.); (X.L.)
| | - Bo Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China; (Z.S.); (L.Z.); (J.L.); (Y.X.); (S.W.); (B.Z.)
| | - Xuedong Lv
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; (D.S.); (Y.L.); (T.Z.); (X.L.)
| | - Qiyong Mei
- Department of Neurosurgery, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
- Correspondence: (C.L.); (Q.M.)
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