Synthesis and properties of high performance thermoplastic polycarbonate polyurethane elastomers through a non-isocyanate route.

ABSTRACT: Thermoplastic polycarbonate polyurethane elastomers (TPCUEs) are synthesized through a solvent-free non-isocyanate melt polycondensation route. The route starts with the synthesis of 1,6-bis(hydroxyethyloxycarbonylamino)hexane (BHCH) from ethylene carbonate and 1,6-hexanediamine, and then the TPCUEs are prepared by the melt polycondensation of BHCH and polycarbonate diols (PCDLs). The TPCUEs are characterized by GPC, FT-IR, ¹H NMR, XRD, AFM, DSC, TGA and tensile testing. The TPCUEs prepared have linear structures and high molecular weights, with Mn over 3.0 × 10⁴ g mol^-1. And these TPCUEs exhibit excellent thermal and mechanical properties, with T _g ranging from -18 to -1 °C, T _m ranging from 93 to 122 °C, T _d

SUBMITTER: Liu T 

PROVIDER: S-EPMC9585926 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature