De, Priyadarsi and Sathyanarayana, DN (2002) Synthesis and characterization of copolyperoxides of indene with styrene, \alpha -methylstyrene, and \alpha -phenylstyrene. In: Journal of Polymer Science Part B: Polymer Physics, 40 (18). 2004 - 2017.
PDF
fulltext_ID=97517754&PLACEBO=IE.pdf Restricted to Registered users only Download (204kB) | Request a copy |
Abstract
The oxidative copolymerization of indene with styrene, \alpha -methylstyrene, and \alpha -phenylstyrene is investigated. Copolyperoxides of different compositions have been synthesized by the free-radical-initiated oxidative copolymerization of indene with vinyl monomers. The compositions of the copolyperoxides obtained from the $^1H and ^1^3C$ NMR spectra have been used to determine the reactivity ratios of the monomers. The reactivity ratios indicate that indene forms an ideal copolyperoxide with styrene and \alpha -methylstyrene and alternating copolyperoxides with \alpha -phenylstyrene. Thermal degradation studies via differential scanning calorimetry and electron-impact mass spectroscopy support the alternating peroxide units in the copolyperoxide chain. The activation energy for thermal degradation suggests that the degradation is dependent on the dissociation of the peroxide (-O-O-) bonds in the backbone of the copolyperoxide chain. Their flexibility has been examined in terms of the glass-transition temperature.
Item Type: | Journal Article |
---|---|
Publication: | Journal of Polymer Science Part B: Polymer Physics |
Publisher: | John Wiley & Sons |
Additional Information: | Copyright of this article belongs to John Willey & Sons |
Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry |
Date Deposited: | 29 May 2007 |
Last Modified: | 19 Sep 2010 04:38 |
URI: | http://eprints.iisc.ac.in/id/eprint/11096 |
Actions (login required)
View Item |