醋酸酯淀粉是有机酸酯类衍生物。
变性聚乙烯醇和淀粉醋酸酯的红外光声光谱和红外吸收光谱具有相同图谱。
The infrared photoacoustic spectrum and the infrared spectrum of modified polyvinyl alcohol and of starch acetate are identical.
衍射结果表明，淀粉醋酸酯和原淀粉的结晶结构完全不同，说明在取代过程中，原淀粉的结晶结构遭到破坏。
The results of X-ray diffraction show that the crystal structure of high amylose starch and the starch acetate differs greatly, which implies that the crystal structure is damaged during substitution.
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