摘要
以废弃棉为原料在微波辐照下制得羧甲基纤维素,通过测定其取代度得出最佳反应条件为:m(纤维素)∶m(NaOH)∶m(ClCH2COOH)=1.0∶1.1∶1.2,以95%的乙醇为分散介质,碱化间歇辐射时间2 min,醚化间歇辐射时间2 min,微波辐射功率为200 W。所得产品为白色粉末,取代度为0.75。
CMC was synthesized under microwave irradiation using waste cotton as raw materials. The optimal conditions for the reaction were determined as： the weight ratio of cellulose to sodium hydroxide to chloroacetic acid was 1.0 ： 1.1 ： 1.2, and the cellulose was alkalified for 2 min and etherified for 2 min under microwave irradiation power of 200 W in 95% ethanol. The white powder of product was eventually obtained, with the degree of substitution of 0.75.
出处
《大连工业大学学报》
CAS
2008年第2期149-151,共3页
Journal of Dalian Polytechnic University
基金
辽宁省教育厅科学研究资助项目(B类)(2005094)
关键词
羧甲基纤维素(CMC)
微波辐射
取代度
carboxymethyl cellulose （CMC）
microwave irradiation
degree of substitution（DS）
