多元丙烯酸酯泡沫微球的制备

 利用自行设计的三喷嘴乳粒发生器，实现了多元丙烯酸酯空心泡沫微球的可控连续制备。通过配制内层为水，中间层为多元丙烯酸酯单体溶液，外层为聚乙烯醇溶液的水/油/水乳液，在紫外光照射时，室温条件下成功快速地制备出粒径1.5~4.0 mm的多元丙烯酸酯泡沫微球。利用扫描电镜、X光机等测试手段对微球的形貌、表面特性进行了研究，结果显示：泡沫微球的高聚物骨架的折射率约为1.50，由大量分散的蜂窝微孔组成，蜂窝的直径不超过1 μm；多元丙烯酸酯泡沫微球的成活率高达93%，单分散性较好。

A new method to make poly acrylate foam shells

A triple-orifice droplet generator was designed and developed for the size-controllable continuous fabrication of hollow foam micro-shells. Solutions of an internal water phase, an oil phase (trimethylpropane triacrylate monomer, dibutyl phthalate solvent, and benzoin ethyl ether initiator), and an external water phase were used to prepare micro-shells whose diameters are between 1.5 mm and 4.0 mm successfully. Characterization of the foam shells was carried out using a scanning electron microscope and X-ray radiography. The results show that cell diameters of the shells are not above 1 μm. The refractive index of the polymer framework is around 1.50. Furthurmore, the shells fabricated through the triple-orifice droplet generator have a high survival probability of 93% and exhibit narrow