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采用溶液聚合法合成了三元丙烯酸酯共聚物（MA／BA／AA）。红外光谱和X－射线衍射分析了共聚物的组成，并探讨了该共聚物与淀粉反应的过程。结果表明，该共聚物在淀粉颗粒上进行自由基接枝共聚反应，反应主要发生在淀粉颗粒的无定形区，改性后的淀粉能够保持原淀粉颗粒的完整结构。
Ternary acrylate copolymer (MA / BA / AA) was synthesized by solution polymerization. The composition of the copolymer was analyzed by IR and X-ray diffraction. The reaction of the copolymer with starch was also discussed. The results showed that the copolymer was grafted on the starch granules by radical graft copolymerization. The reaction mainly occurred in the amorphous area of the starch granules. The modified starch could maintain the intact structure of the original starch granules.