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Kinetics of Poly(Styrene Peroxide) Initiated Polymerization of Methyl Methacrylate and Styrene

Murthy, Shanmugananda K and Kishore, K (1997) Kinetics of Poly(Styrene Peroxide) Initiated Polymerization of Methyl Methacrylate and Styrene. In: European Polymer Journal, 33 (4). pp. 441-446.

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Abstract

Poly(styrene peroxide) (PSP), an alternating copolymer of oxygen and styrene, has been used as an initiator for the radical polymerizations of methyl methacrylate and styrene. Thermal decomposition of PSP follows first order kinetics with an activation energy of 160.0 kJ/mol. Polymerizations of MMA and styrene (60–90 °C) follow the usual kinetics. The efficiency of the initiator, PSP, was found to be low (0.006–0.014), attributed to the competing unimolecular decomposition of macroalkoxy radicals and primary radical initiation. The presence of peroxy segments in the backbone of PMMA and polystyrene (PS) was confirmed by $^1H \hspace{2mm}NMR$ and DSC studies.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 11 Apr 2007
Last Modified: 19 Sep 2010 04:37
URI: http://eprints.iisc.ernet.in/id/eprint/10652

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