Polymerization of macromonomers. IV: Monomer reactivity ratios in radical copolymerization of methyl methacrylate with (p-vinylbenzyl) polystyrene macromonomer

• Published in: Polymer journal Vol. 21; no. 6; pp. 519 - 522
• Main Authors: TAKAKI, M, ASAMI, R, MATSUSE, T
• Format: Journal Article
• Language: English
• Published: Tokyo Society of Polymer Science 01.06.1989
• Subjects: Applied sciences; Copolymerization; Exact sciences and technology; Organic polymers; Physicochemistry of polymers; Preparation, kinetics, thermodynamics, mechanism and catalysts; Radical copolymerization; Methyl methacrylate; Reactivity ratio; Macromer
• ISSN: 0032-3896; 1349-0540
• DOI: 10.1295/polymj.21.519

Macromonomers have been recognized to be extremely useful for the preparation of novel multibranched (co)polymers such as star, comb, and graft type (co)polymers, as reviewed by many polymer chemists. For the construction of well-defined polymer architecture by such a macromonomer, fundamental data on homo- and /or copolymerization of the macromonomer are indispensable. In regard to copolymerizations of conventional small monomers (M sub 1 ) with macromonomers (M sub 2 ), monomer reactivity ratios of r sub 1 have been reported relatively extensively. However, papers dealing with both r sub 1 and r sub 2 values have been limited. Both r sub 1 and r sub 2 values in the copolymerization of methyl methacrylate (M sub 1 ) with (p-vinylbenzyl)polystyrene macromonomer (M sub 2 ) were evaluated, by taking advantage of the high sensitivity of the carbonyl group of the small monomer to an IR spectrometer. 30 ref.--AA