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Thermal-Initiating Potentialities of Vinyl Polyperoxides: Transmutation of Block-into-Block Copolymer and an Exploratory Investigation of Surface Texture and Morphology

Nanda, Ajaya Kumar and *, Kishore (2000) Thermal-Initiating Potentialities of Vinyl Polyperoxides: Transmutation of Block-into-Block Copolymer and an Exploratory Investigation of Surface Texture and Morphology. In: Journal of Polymer Science Part -A Polymer Chemistry, 38 (19). pp. 3665-3673.

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Official URL: http://www3.interscience.wiley.com/journal/7251644...

Abstract

This article describes the first comprehensive study on the use of vinyl polyperoxides, namely, poly(cu-methyl styrene peroxide) (PMSP) and poly(styrene peroxide) (PSP), as thermal initiators for the synthesis of active polymers, PMSP-PS-PMSP/PSP-PS-PSP, by free-radical polymerization with styrene. The active polymers have been characterized by H-1 NMR, differential scanning calorimetry, thermogravimetric analysis, and gel permeation chromatography analysis. The PMSP-PS-PMSP/PSP-PS-PSP is further used as the thermal macroinitiator for the preparation of another block copolymer, PS-b-PMMA, through the reaction of the active polymers with methyl methacrylate. The mechanism of the block copolymer formation is discussed. Having established the scanning micrograph details of the homopolymer phases, we analyze the surface features and morphology of the block copolymer. Furthermore, the distinction in appearance is highlighted with a view toward strengthening the chemistry with the structural appearance in materials processed differently.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 19 Nov 2009 08:38
Last Modified: 19 Sep 2010 05:01
URI: http://eprints.iisc.ernet.in/id/eprint/18287

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