摘要
研究了溶媒法合成聚阴离子纤维素(PAC)过程中游离碱浓度、氯乙酸钠水解率和产品取代度(DS)及其溶液粘度与反应条件的相关性。选用异丙醇和表面活性剂等有效地抑制氯乙酸钠的水解,从而获得较高的产品取代度和氯乙酸利用率。
The dependence of concentration of free sodium hydroxide, hydrolyzation ratio of sodium chloroacetate, degree of substitution(DS) and solution viscosity of product on reaction conditions in the synthesis of polyanionic cellulose(PAC) in various alcohol mediums are studied. By using isopropyl alcohol and surfactant, the hydrolyzation ratio of sodium chloroacetate is eefectively inhibited so that higher DS of PAC and higher utilization ratio of chloroacetic acit are obtained.
出处
《漳州师范学院学报（自然科学版）》
2002年第4期80-82,共3页
Journal of ZhangZhou Teachers College（Natural Science)
