A Solvent-free Route to Non-isocyanate Poly(carbonate urethane) with High Molecular Weight and Competitive Mechanical Properties

A series of non-isocyanate linear poly(carbonate urethanes) (PCUs) were prepared through an environmentally-friendly route based on dimethyl carbonate, 1,6-hexanediol and 1,6-hexanediamine. The obtained polymers were characterized by FT-IR, 1H NMR, 13C NMR, GPC, DSC, TGA, XRD and tensile testing. This data is the characterization results of the obtained polymer. The results indicated that the PCUs possessed a linear structure and high molecular weight with a number-average molecular weight of up to 60, 000 g/mol. It should be noted that the PCUs exhibited good thermal properties with a composition-dependent melting point ranging from 60 °C to 137 °C, and a good mechanical strength, with tensile strength values lying between 17 MPa and 29 MPa and elongation at break varying from 665% to 26%.