Ha has functional groups such as hydroxyl, carboxyl and N-acetyl, therefore, it can be modified by cross-linking, esterification, graft, molecule modification and composition.
HA具有羟基、羧基和乙酰胺基等官能团，可通过交联、酯化、接枝、分子修饰和复合等方法进行改性。
The esterification reaction of propionic acid with n-pentanol was studied by using novel aluminophosphate and silicoaluminophosphate molecular sieves as catalysts.
用新型磷酸铝分子筛和硅磷酸铝分子筛作催化剂，对丙酸和正戊醇液—固相酯化反应进行了研究。
The amyl pentanoate was synthesized by the esterification reaction of n-pentanol with pentanoic acid using aluminophosphate molecular sieve as a catalyst.
首次用磷酸铝分子筛催化戊酸与正戊醇的酯化反应合成了戊酸正戊酯。
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