Reddy, G. G. ; Nagabhushanam, T. ; Rao, K. V. ; Santappa, M. (1981) Oxygen promoted radical polymerization of acrylonitrile in aqueous nitric acid. A kinetic study European Polymer Journal, 17 (12). pp. 1253-1257. ISSN 0014-3057
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0014-3057(81)90088-4
Abstract
The polymerization of acrylonitrile (AN) initiated by oxygen-ascorbic acid (AA)-ferric ion system was studied in dil. HNO3 at 40°. The rate of polymerization, Rp, was found gravimetrically. In the [Fe3+] range, (2-5×10−5 M, Rp was proportional to [AN]1.5±0.05, [O2]0.5±0.02 [AA]0 and [Fe3+]0; for [Fe3+]=(5-30)×10−5 M, it was proportional to [AN]1.8±0.05, [O2]0.6±0.02, [AA]0 and [Fe3+]−0.9±0.05. A plausible reaction scheme is proposed and rate law presented to explain these results. Rp increased with ionic strength and [HNO3] (up to ~0.25 M). An initial rate increase with temperature followed by a decrease was noticed. Chain lengths of the polymers were determined viscometrically.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 43378 |
| Deposited On: | 11 Jun 2011 09:33 |
| Last Modified: | 11 Jun 2011 09:33 |
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