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Organostibine‐Mediated Controlled/Living Radical Polymerization of Methyl Methacrylate and Styrene in Ionic Liquidsa
Author(s) -
Cui Guoyou,
Li Jun,
Liu Zhengping,
Dou Junyan
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200900644
Subject(s) - ionic liquid , copolymer , methyl methacrylate , polymerization , dispersity , polymer chemistry , styrene , living anionic polymerization , living polymerization , radical polymerization , materials science , living free radical polymerization , chemistry , chemical engineering , organic chemistry , polymer , catalysis , engineering
Organostibine‐mediated controlled/living radical polymerization of MMA was successfully achieved in room temperature ionic liquids (RTILs) [bmim]Tf 2 N and [bmim]PF 6 . The ln([M] 0 /[M]) increased linearly with increasing reaction time. The number‐average molecular weights of PMMA increased linearly with conversion, and the polydispersity indices were less than 1.15 and narrower in RTILs than in bulk. The living characters of SBRP were further demonstrated by chain extension of PMMA and preparation of copolymer PMMA ‐b‐ PS in RTILs. Recycle and reuse of RTILs were efficient with well‐controlled PMMA produced in the recycled RTILs. SBRP of St in RTILs was also discussed. The polymerization could be controlled only at low St conversion due to the heterogeneous reaction.