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Thermoresponsive Behavior of Mixtures of Epoxy Functionalized Oligo(ethylene glycol) Methacrylate Copolymers
Author(s) -
París Rodrigo,
Liras Marta,
QuijadaGarrido Isabel
Publication year - 2011
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.201100191
Subject(s) - lower critical solution temperature , methacrylate , polymer chemistry , ethylene glycol , copolymer , atom transfer radical polymerization , glycidyl methacrylate , epoxy , polymer , monomer , materials science , polymerization , chemistry , chemical engineering , organic chemistry , composite material , engineering
Thermoresponsive random copolymers based on 2‐(2‐methoxyethoxy)ethyl methacrylate (MEO 2 MA) and oligo(ethylene glycol) methyl ether methacrylate (OEG 8‐9 MA) are synthesized by atom transfer radical polymerization (ATRP). In a second step, they are used as macroinitiators for the ATRP of glycidyl methacrylate (GMA), introducing a short end‐block with epoxy functionalities that allows the connection of the thermoresponsive polymers to a variety of molecules, surfaces, or particles. The resulting epoxy functionalized terpolymers exhibit lower critical solution temperatures (LCST), which can be adjusted by changing the feed monomer ratio of MEO 2 MA and OEG 8‐9 MA. Binary blends show one or two cloud points depending on the blend composition. A model for the polymer collapse in one mixed particle or in two different particles as function of composition is proposed.