METHODS Reversed phase microemulsion polymerization method was used.Phosphorous oxychloride was selected as the linking agent to prepare starch nanoparticles.

• 方法采用反相乳液聚合法,以三氯氧磷为交联剂,制备淀粉纳米粒子(SNP),并考察其合成工艺,测定其粒度分布、红外光谱、磷含量、降解性等。