【摘要】 本文研究了制备壳聚糖硫酸盐催化剂的相关影响因素,考察壳聚糖硫酸盐催化活性和稳定性,并用其催化合成对羟基苯甲酸丁酯。重点讨论催化剂用量,酸醇量比和反应时间对酯化率的影响,确定了较佳的反应条件。更多还原

【Abstract】 The preparation of chitosan sulfate and its main influential factors have been studied including its catalytic reaction and stability in some esterfations, and ethyl-hdroxybenzoate has been catalytically synthesized with chitosan sulfate. The reaction condition of-phydroxybenzoic acid with nbutyl alcohol by using chitosan sulfate as catalyst has been dealt with, and influences of amount of catalyst, the molar ration of alcohol toacid and reaction time that effects the esterifation have been mainly discussed.更多还原