Polymerization-Induced Self-Assembly for the Synthesis of Polyisoprene-Polystyrene Block and Random Copolymers: Towards High Molecular Weight and Conversion.

ABSTRACT: In this study, reversible addition-fragmentation chain- transfer (RAFT) polymerization combined with the polymerization-induced self-assembly (PISA) technique is used to synthesize polyisoprene (PI)-based block and random copolymers with polystyrene (PS), aiming for high molecular weight and monomer conversion. The focus is to optimize the polymerization conditions to overcome the existing challenge of cross-linking and Diels-Alder reactions during the polymerization of isoprene, which typically constrain the reaction conversion and molecular weight of the final polymers. Using a poly(methacrylic acid) (PMAA) macroRAFT agent synthesized in ethanol at 80 °C, random and block copolymers of PS-PI with a target molecular weight of 50 000 g mole^-1 and a high monomer conversion of ≈80

SUBMITTER: Moradi M 

PROVIDER: S-EPMC11800055 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature