Polymerization and copolymerization of dimethyl(1-ethoxycarbonyl)vinyl phosphate

• Published in: Polymer (Guilford) Vol. 44; no. 15; pp. 4165 - 4170
• Main Authors: Kim, Yongsin, Priddy, Duane, James Harwood, H
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.07.2003; Elsevier
• Subjects: Applied sciences; Copolymer; Exact sciences and technology; Monomer; Organic polymers; Organophosphorus; Physicochemistry of polymers; Polymerization; Preparation, kinetics, thermodynamics, mechanism and catalysts; Organophosphorus; Monomer; Copolymer; Acrylic copolymer; Phosphorus copolymer; Experimental study; Reactivity ratio; Thermal stability; Phosphorus polymer; Free radical polymerization; Chain transfer; Preparation; Organic phosphate; Acrylic polymer; Radical copolymerization; Styrene copolymer
• ISSN: 0032-3861; 1873-2291
• DOI: 10.1016/S0032-3861(03)00365-3

Dimethyl(1-ethoxycarbonyl)vinyl phosphate (DMEVP), prepared in nearly quantitative yield from the reaction of ethyl bromopyruvate with trimethyl phosphite, polymerizes easily by free radical initiated polymerization and copolymerizes readily with styrene (S). Reactivity ratios determined at 60 and 135 °C were r S=0.21±0.02, r DMEVP=0.35±0.05 and r S=0.31±0.03, r DMEVP=0.31±0.04, respectively. Glass transition temperatures and thermal stabilities of the copolymers decreased but char yields obtained upon thermolysis increased as the DMEVP contents of the copolymers increased. 1H, 13C and 31P NMR spectra of the copolymers are reported. DMEVP exhibited mild chain transfer activity ( C tr∼0.01) in styrene polymerizations conducted at 135 °C and in emulsion polymerizations at 50 °C.