Thermal Polymerization of Acrylamide by Differential Scanning Calorimetry

Kishore, K and Santhanalakshmi, KN (1981) Thermal Polymerization of Acrylamide by Differential Scanning Calorimetry. In: Journal of Polymer Science: Polymer Chemistry Edition, 19 (10). pp. 2367-2375.

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Abstract

Thermal polymerization of acrylamide was studied by differential scanning calorimetry. Latent heat of fusion \bigtriangleup Hf and enthalpy of polymerization \bigtriangleup Hp values were found to be 36 and $-18.0 kcal mol^{-1}$, respectively. The overall activation energy E for the polymerization was calculated to be $19 k cal mol^{-1}$ up to 60% conversion. The added free-radical inhibitor (benzoquinone) was found to desensitize the thermal polymerization of acrylamide suggesting the polymerization to be a free-radical type. The existing rate equation for the heterogeneous bulk polymerization in the presence of initiators has been modified for the thermally initiated bulk polymerization of acrylamide. The experimental overall E value was found to agree well with the calculated E value when considering only the propagation and termination steps, thereby suggesting the process to be similar to postpolymerization of acrylamide.

Item Type:	Journal Article
Publication:	Journal of Polymer Science: Polymer Chemistry Edition
Publisher:	John Wiley & Sons, Inc.
Additional Information:	The copyright belongs to John Wiley & Sons, Inc.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	28 Dec 2005
Last Modified:	19 Sep 2010 04:22
URI:	http://eprints.iisc.ac.in/id/eprint/4408

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