内表面掺硅聚苯乙烯空心微球初步研究
Initial study on fabrication of innerSi-doped polystyrene capsules
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摘要: 靶丸内表面掺杂诊断元素可以为内爆压缩界面的研究提供必要的手段。以二甲基二乙氧基硅烷为原料，利用乳液微封装技术和界面聚合技术可以实现单一内表面掺硅的空心聚苯乙烯微球的制备。X光照相和X能谱分析表明：内表面掺硅量比外表面高出2~3个数量级。均匀内表面掺硅层的厚度小于0.3μm，掺杂层厚度越小，均匀性越好。Abstract: Inner-Si-doped polystyrene capsules are required to meet the demand of characterization of implosion interface. With dimethyldiethoxysilane (DMDES) as silicon donor, an encapsulation method is used to fabricate the inner-Si-doped polystyrene capsules. Noncontact X-radiography and X-spectrum analysis indicate that the resultant capsules appear with Si content at inner surface much higher about 2~3 order than that at outer surface and thickness of Sidoped layer less than 0.3μm．
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Key words:
- sidoping /
- polystyrene /
- capsule
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