Study on Synthesis of Maleic Anhydride Grafted Starch

摘要

In order to improve the processing properties of starch, maleic anhydride grafted starch prepared by solution polymerization, With starch and maleic anhydride as raw materials. The structure of the material have been characterized by Fourier transform infrared spectrum (FTIR) and scanning electron microscopy (SEM). The results show that maleic anhydride grafted starch optimum conditions: ratio of starch and maleic anhydride dosage was 3:2.5, solvent water dosage was 1.0mL/g, at 40°C, for 5h. The results showed that the grafting ratio was 47.27% and the grafting efficiency was 89.78% at this time.