Curing Reactions in Elastomers. 11. Carboxy- Terminated Polybutadiene

Kishore, K and Verneker, VRP and Vasanthakumari, R (1983) Curing Reactions in Elastomers. 11. Carboxy- Terminated Polybutadiene. In: Journal of Applied Polymer Science, 28 (2). pp. 595-604.

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Abstract

Attempts have been made to understand the curing reactions in carboxy-terminated polybutadiene (CTPB), which happens to be the most practical binder in advanced solid composite propellants. The curing of CTPB has been studied for different ratios of curing agents (MAPO and Epoxide) by gel content, molecular weight, crosslink density, and penetration temperature measurements, and the optimum composition of curators for effective curing of CTPB has been determined. Activation energy calculations on the curing of CTPB with 9.5% epoxide and 0.5% MAPO in the temperature range 75100°C gave 14.1 kcal/mol for which a diffusion-controlled or acid-catalyzed epoxide ring opening mechanism has been suggested for the curing process in CTPB.

Item Type:	Journal Article
Publication:	Journal of Applied Polymer Science
Publisher:	John Wiley and Sons
Additional Information:	Copyright of this article belongs to John Wiley and Sons.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	03 Jul 2009 05:08
Last Modified:	19 Sep 2010 05:35
URI:	http://eprints.iisc.ac.in/id/eprint/21064

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