Preparation of Cellulose-graft Water Retaining Agent:Effect of Reaction Temperature and Initiator

摘要

Grafting vinyl monomers onto natural cellulose become a preferred method to derive water retaining agent because it afforded unique environmental and commercial advantages. In current work, a series of water retaining agent were prepared by radical solution polymerization of cellulose, partially neutralized acrylic acid and acrylamide using grafted agents as an initiator and N, N-methylenebisacryl-amide as a crosslinker. Fourier transform infrared spectroscopy spectra proved that acrylic acid and acrylamide were grafted onto cellulose backbone and N, N-methylenebisacrylamide participated in polymerization. The effects of reaction conditions of reaction temperature and initiator amount to water retaining agent were studied using water absorbencies as evaluation standard, the optimum preparation technology was decided.