Facile synthesis of recyclable polythioimidocarbonates <i>via</i> aromatization-driven alternating copolymerization of <i>para</i>-quinone methide and isothiocyanates.

ABSTRACT: The efficient and controllable alternating copolymerization of para-Quinone Methide (p-QM) is rare and challenging. The aromatization-driven alternating copolymerization of p-QM with isothiocyanates is explored for the first time under mild conditions. In the presence of the key catalyst m-phthalic acid and the initiator TBD, the reaction can efficiently produce completely alternating polythioimidocarbonates with narrow molecular weight distributions and high molar mass (up to 103.6 kg mol^-1). Experimental studies and DFT calculations suggest that m-phthalic acid plays a synergistic catalytic role. Remarkably, copolymers can be recycled back into monomers with excellent yields under vacuum at a temperature of 190 °C in just a few minutes withou

SUBMITTER: Chu WD 

PROVIDER: S-EPMC11866116 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature