Biosourced All-Acrylic ABA Block Copolymers with Lactic Acid-Based Soft Phase.

ABSTRACT: Lactic acid is one of the key biobased chemical building blocks, given its readily availability from sugars through fermentation and facile conversion into a range of important chemical intermediates and polymers. Herein, well-defined rubbery polymers derived from butyl lactate solvent were successfully prepared by reversible addition-fragmentation chain transfer (RAFT) polymerization of the corresponding monomeric acrylic derivative. Good control over molecular weight and molecular weight distribution was achieved in bulk using either monofunctional or bifunctional trithiocarbonate-type chain transfer agents. Subsequently, poly(butyl lactate acrylate), with a relative low Tg (-20 °C), good thermal stability (5% wt. loss at 340 °C) and low toxicity was evaluated as a sustainable middle blo

SUBMITTER: Bensabeh N 

PROVIDER: S-EPMC7731403 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature