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Controlled Polymerization of Glycidyl Methyl Ether Initiated by Onium Salt/Triisobutylaluminum and Investigation of the Polymer LCST
Author(s) -
Labbé Amélie,
Carlotti Stéphane,
Deffieux Alain,
Hirao Akira
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200750409
Subject(s) - lower critical solution temperature , polymerization , polymer chemistry , monomer , polymer , solubility , ether , onium , materials science , chemistry , organic chemistry , copolymer , ion
New initiating systems developed for monomer activated anionic polymerization of propylene oxide, i.e. onium salt/triisobutylaluminum, were applied to the polymerization of glycidyl methyl ether. At low to medium temperature they yield fast polymerization and allow the synthesis of poly(glycidyl methyl ether) with high molar masses in a controlled way. Poly(glycidyl methyl ether) exhibits a critical solubility temperature (LCST) in water which is influenced by the polymer molar masses. Surprizingly Poly(glycidyl methyl ether)s show also some tendency to crystallize in water at low temperature, which perturb their solubility characteristics and behaviour in water.