High performance poly(urethane-co-amide) from CO₂-based dicarbamate: an alternative to long chain polyamide.

ABSTRACT: Due to its high strength, toughness, corrosion resistance and wear resistance, long chain polyamide (LCPA) has attracted broad interest. Nevertheless, its wide application in industrial fields is still being restricted because the starting material acquisition step involving diacid and diamine remains a major obstacle. Herein, we circumvent this obstacle by developing a novel polymer with similar properties by a green and efficient copolymerization process of carbon dioxide (CO₂)-based dicarbamate with diamide diol under vacuum conditions, named poly(urethane-co-amide) (PUA). The semi-crystalline PUAs with high number-weight-average molecular weights (M _n, up to 41.3 kDa) were readily obtained, and these new polymers show high thermal stability (above 30

SUBMITTER: Qin J 

PROVIDER: S-EPMC9070367 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature