Effect of Different Initiator Systems on Graft Copolymerization of Cellulose Fiber with Caprolactam

Abstract:

Effects of commonly used initiator systems of grafting copolymerization on pulp fiber with caprolactam were studied in this paper. The systems were listed as below: potassium persulphate-sodium bisulfite, cerium nitrate amine, potassium permanganate, hydrogen peroxide-ferrous sulfate and benzoyl peroxide. According the grafting ratio as the main parameter, the optimal initiator system was used in the grafting copolymerization of cellulose fiber with caprolactam, which was picked under the same conditions including the same monomer concentration, the same temperature and the same reaction time. The results showed that it can obtain a higher grafting ratio at low temperature, and low reaction activation energy with a faster reaction rate in the oxido-reduction system (K2S2O8-NaHSO₃). And the reactant could expand in a short time. The K₂S₂O₈-NaHSO₃ initiator system is higher in graft ratio, rapid in speed and low in cost.

• Periodical: Advanced Materials Research (Volumes 391-392)
• Pages: 1306-1310
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.391-392.1306
• Online since: December 2011
• Authors: Hui Juan Xiu, Qing Han, Li Jun Wang, Ru Zhang
• Keywords: Caprolactam, Graft Copolymerization, Initiator Systems, Modification

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