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Microwave‐Assisted Ring‐Opening Polymerization of ε ‐Caprolactone in the Presence of Ionic Liquid
Author(s) -
Liao Liqiong,
Liu Lijian,
Zhang Chao,
Gong Shaoqin Sarah
Publication year - 2006
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.200600591
Subject(s) - ionic liquid , polymerization , molar mass , caprolactone , tetrafluoroborate , ring opening polymerization , materials science , polymer chemistry , ionic bonding , microwave , catalysis , chemical engineering , chemistry , organic chemistry , ion , polymer , composite material , engineering , physics , quantum mechanics
Summary: Microwave‐assisted ring‐opening polymerization of ε ‐caprolactone in the presence of 1‐butyl‐3‐methylimidazolium tetrafluoroborate ionic liquid using zinc oxide as a catalyst is investigated. By adding 30 wt.‐% ionic liquid, poly( ε ‐caprolactone) with a weight‐average molar mass of 28 500 g · mol −1 is obtained at 85 W for 30 min. The results indicate that the polymerization could be efficiently enhanced in the presence of ionic liquids under microwave irradiation because ionic liquids can effectively absorb microwave energy.