Synthesis of block copolymers by changing living anionic polymerization into living ring opening metathesis polymerization

Castle, T.C.; Hutchings, L.R.; Khosravi, E.

doi:10.1021/ma030418s

Synthesis of block copolymers by changing living anionic polymerization into living ring opening metathesis polymerization

Castle, T.C.; Hutchings, L.R.; Khosravi, E.

Authors

T.C. Castle

Lian Hutchings l.r.hutchings@durham.ac.uk
Academic Visitor

E. Khosravi

Abstract

A series of AB diblock copolymers have been synthesized by transformation of living anionic polymerization into ring opening metathesis polymerization (ROMP). Ethylene oxide was polymerized anionically using diphenylmethylpotassium as the initiator and was terminated with vinylbenzyl chloride to produce a series of poly(ethylene oxide) (PEO) macromonomers with a terminal vinyl group. An alkylidene exchange reaction was then realized with ruthenium propylidene complex RuCl2(=CHC2H5)(PCy3)(2), transforming PEO macromonomers into ruthenium ROMP macroinitiators. A variety of norbornene derivatives were then subjected to ROMP using PEO macroinitiators to synthesize well-defined block copolymers of varying molecular weights and compositions.

Citation

Castle, T., Hutchings, L., & Khosravi, E. (2004). Synthesis of block copolymers by changing living anionic polymerization into living ring opening metathesis polymerization. Macromolecules, 37(6), 2035-2040. https://doi.org/10.1021/ma030418s

Journal Article Type	Article
Publication Date	2004-03
Deposit Date	Apr 20, 2007
Journal	Macromolecules
Print ISSN	0024-9297
Electronic ISSN	1520-5835
Publisher	American Chemical Society
Peer Reviewed	Peer Reviewed
Volume	37
Issue	6
Pages	2035-2040
DOI	https://doi.org/10.1021/ma030418s