The xanthate method of grafting. VI. The copolymer–homopolymer ratio
Article first published online: 9 MAR 2003
Copyright © 1977 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 21, Issue 11, pages 2991–3002, November 1977
How to Cite
Hornof, V., Daneault, C., Kokta, B. V. and Valade, J. L. (1977), The xanthate method of grafting. VI. The copolymer–homopolymer ratio. J. Appl. Polym. Sci., 21: 2991–3002. doi: 10.1002/app.1977.070211114
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 8 OCT 1976
- Manuscript Received: 18 JUN 1976
Wood pulp was compolymerized with butyl acrylate as monomer. The xanthate redox method was employed to initiate the reaction. The effect of reaction time and temperature on the relative yield of grafted polymer and homopolymer was investigated. In the lower temperature region (15°–25°C), induction periods ranged from 10 to 30 min. No induction periods were observed at higher temperatures (40° and 60°C). The copolymer/homopolymer ratio was found to depend on both time and temperature. A considerable amount of homopolymer was formed in the initial stage of the reaction. Increased reaction temperature resulted in lower grafting efficiency. Similarly, both graft and homopolymer molecular weight decreased with rising reaction temperature.