Abstract
AbstractBlock copolymers comprising blocks with pendant hydroxy groups of opposite chirality are synthesized by RAFT polymerization of (R)‐ and (S)‐1‐(4‐vinylphenyl)ethanol (1R and 1S) as monomers. Initially, poly(styrene) macro‐RAFT agents are chain‐extended with both enantiomeric monomers to obtain poly(styrene‐b‐1R) and poly(styrene‐b‐1S) with controlled molecular weight and low polydispersities. Enantioselective esterification with vinyl acetate by Candida Antarctica Lipase B (CALB) is only possible on the 1R‐containing block copolymer. This concept is extended to a series of chiral block copolymers poly(1R‐b‐1S) which, apart from their optical rotation, all behave like very similar homopolymers. By enzymatic enantioselective esterification on the 1R‐block, block copolymer structures were obtained.
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