Functionalized Thermo-Responsive Poly(vinyl ether) by Living Cationic Random Copolymerization of Methyl Vinyl Ether and 2-Chloroethyl Vinyl Ether

• Published in: Macromolecular chemistry and physics Vol. 208; no. 17; pp. 1871 - 1882
• Main Authors: Confortini, Ondine, Du Prez, Filip E.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 05.09.2007; WILEY‐VCH Verlag; Wiley
• Subjects: Applied sciences; Copolymerization; Exact sciences and technology; LCST; living polymerization; Organic polymers; Physicochemistry of polymers; poly(vinyl ether)s; Preparation, kinetics, thermodynamics, mechanism and catalysts; thermo-responsive polymers; Cationic copolymerization; copolymerization; Chlorine containing copolymer; Solution copolymerization; Organic silane; Experimental study; Reactivity ratio; Zinc II Iodides; thermo-responsive polymers; poly(vinyl ether)s; Acetal; Random copolymer; Cloud point; Preparation; Vinyl ether copolymer; living polymerization; Living copolymer; Aqueous solution; LCST
• ISSN: 1022-1352; 1521-3935
• DOI: 10.1002/macp.200700205

The living cationic random copolymerization of MVE and CEVE to obtain functionalized thermo‐responsive PMVE as precursors for more complex PMVE‐containing polymer structures is reported. The random copolymers P(MVE‐co‐CEVE) were synthesized at 0 °C in toluene using the DEE/TMSI/ZnI2 initiating system. The monomer reactivity ratios of these copolymers are determined according to the extended Kelen‐Tüdõs procedure: rCEVE = 0.48 ± 0.04 and rMVE = 0.76 ± 0.05. The cloud point temperatures of the random copolymers are found to depend strongly on the composition of the copolymer and disappeared at CEVE contents above 3 mol‐%.