Starch nanoparticles ( sn ) have been prepared with w / o starch microemulsion as microreader and epichlorohydrin as cross - linking agent . the factors affecting the preparation of sn have been investigated via the characterization of tem . the results show that the size and size distribution of sn are mainly controlled by the interfacial strength of microreactor , and the interfacial strength of microreactor is chiefly influenced by w value ( the molar ratio of water / surfactant ) and concentration of starch 利用所得到的w o型淀粉微乳液作为微型反应器，以环氧氯丙烷为交联剂制备出淀粉纳米粒，并借助透射电镜的表征研究了各制备因素的影响，研究结果表明：淀粉纳米粒的粒径及粒度分布主要受微型反应器的界面强度控制，而影响界面强度的因素主要是r值(即水与表面活性剂的摩尔比值)及淀粉液浓度。
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