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Sequence Controlled Polymers from a Novel β‐Cyclodextrin Core
Author(s) -
Abdouni Yamin,
Yilmaz Gökhan,
Becer C. Remzi
Publication year - 2017
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201700501
Subject(s) - polymer chemistry , ene reaction , click chemistry , monomer , radical polymerization , polymerization , cyclodextrin , copolymer , cycloaddition , chemistry , polymer , alkyne , organic chemistry , catalysis
In this work the synthesis and use of a novel β‐cyclodextrin‐based single electron transfer‐living radical polymerization (SET‐LRP) initiator are reported. Three different approaches toward the synthesis of this initiator, based on several “click”‐like reactions (copper(I)‐catalyzed azide‐alkyne cycloaddition, nucleophilic thiol‐ene reaction, and radical thiol‐ene reaction), are explored and discussed. Synthesis via radical thiol‐ene proves to be most successful in achieving this. The β‐cyclodextrin‐based initiator is subsequently used for the polymerization of several acrylates in a controlled fashion, yielding 7‐arm multiblock copolymers. The achieved sequence‐controlled polymers exhibit low dispersities (≤1.12) and are completed under 6.5 h at high monomer conversion (≥95%) for each block.