In the CAP synthesis under heterogeneous condition, the substitution degree of acetyl and propionyl were increased as the reaction temperature and time increased, while the viscosity of CAP was decreased. 以有机酸为介质、硫酸为催化剂、酸酐为酯化剂非均相合成CAP,发现随着反应时间和温度的提高,乙酰和丙酰取代度提高,CAP的特性粘度降低。