Thermal polymerization of acrylamide by differential scanning calorimetry

Kishore, K. ; Santhanalakshmi, K. N. (1981) Thermal polymerization of acrylamide by differential scanning calorimetry Journal of Polymer Science - Polymer Chemistry Edition, 19 (10). pp. 2367-2375. ISSN 0360-6376

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Thermal polymerization of acrylamide was studied by differential scanning calorimetry. Latent heat of fusion ΔHf and enthalpy of polymerization ΔHp 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:Article
Source:Copyright of this article belongs to John Wiley and Sons.
ID Code:32097
Deposited On:18 Mar 2011 14:35
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