Kinetics and dynamics of gelation reactions

Madras, Giridhar and McCoy, Benjamin J (2007) Kinetics and dynamics of gelation reactions. In: Chemical Engineering Science, 62 (18-20). pp. 5257-5263.

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Abstract

Gelation, which can occur when molecules react or colloids aggregate, is defined as the divergence of second and higher moments of molecular-weight and cluster-size distributions. Distribution kinetics and dynamics, described by population balance equations for aggregation and fragmentation, provide a framework for investigating quantitatively when and how gelation occurs and the conditions for existence of a nongelling steady state. We solve these integrodifferential equations for the size distribution by a numerical method and confirm the results by comparison with moment solutions. The results show how pregelation behavior is influenced by parameters in the aggregation and breakage kernels.

Item Type:	Journal Article
Publication:	Chemical Engineering Science
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier. This article also appeared in 19th International Symposium on Chemical Reaction Engineering - From Science to Innovative Engineering - ISCRE-19.
Keywords:	Gelation;Aggregation;Fragmentation;Distribution kinetics;Population balance model.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	04 Aug 2008
Last Modified:	19 Sep 2010 04:48
URI:	http://eprints.iisc.ac.in/id/eprint/15445

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