Gandhi, V. G. ; Sivaram, S. ; Bhardwaj, I. S. (1983) Acrylonitrile copolymers using cobalt acetylacetonate triethylaluminum initiator system. IV. Copolymerization with styrene Journal of Macromolecular Science: Part A - Chemistry, 19 (1). pp. 147-154. ISSN 1060-1325
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Official URL: http://www.tandfonline.com/doi/abs/10.1080/0022233...
Related URL: http://dx.doi.org/10.1080/00222338308069429
Abstract
The copolymerization of acrylonitrile with styrene was studied using homogeneous Ziegler-Natta initiator containing cobalt acetylacetonate and triethylaluminum in benzene at 50°C. The overall rate of polymerization shows an interesting dependence on triethylaluminum, monomer, and initiator concentrations. The overall activation energy for the polymerization was found to be 10 kcal/mol. The polymerization was susceptible to inhibition by added hydroquinone. These observations are explained based on a mechanism wherein acrylonitrile competes for complexation with both the catalyst sites and the Lewis acid. The catalyst sites appear to possess both coordinate anionic and free radical characteristics.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Taylor and Francis Group. |
| ID Code: | 70019 |
| Deposited On: | 18 Nov 2011 12:52 |
| Last Modified: | 18 Nov 2011 12:52 |
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