During the process of emulsifying and hydrolyzing, reactive poly(3-(triethoxysilyl)propyl methacrylate)-b-polystyrene (PTEPM-b-PS) diblock copolymers can self-assemble and become cross-linked to form hollow spheres in situ with polystyrene on their inner surfaces. The addition of tetraethoxysilane (TEOS), which was hydrolyzed and condensed together with PTEPM block, can make those spheres as soft foldable capsules or hard hollow spheres depending on the amount of added TESO. Then postmodification, the surface-initiated Atom Transfer Radical Polymerization (ATRP) was applied to afford stimuli-responsive spheres, and the corresponding responsive Janus nanoplates (RJPs) were finally obtained by crushing those responsive hollow spheres (HSs) showing smart tunable emulsifiability and great potential in oily water purification. This facile method to fabricate HSs and RJPs could be used for preparing different Janus polymer-inorganic capsules and nanoplates with varied functions by changing the chemical composition of copolymer surfactants as well as the postmodification process.

中文翻译：

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通过Sol-Gel工艺和后改性制备的具有温度和pH响应性的Janus二氧化硅纳米板。

在乳化和水解过程中，反应性聚（3-（三乙氧基甲硅烷基）丙基甲基丙烯酸酯）-b-聚苯乙烯（PTEPM-b-PS）二嵌段共聚物可以自组装并交联形成原位与聚苯乙烯形成的空心球它们的内表面。与PTEPM嵌段一起水解和缩合的四乙氧基硅烷（TEOS）的添加，可以根据TESO的添加量将这些球制成软质可折叠胶囊或硬质空心球。然后进行后改性，应用表面引发的原子转移自由基聚合（ATRP）来提供刺激反应性球体，并通过压碎那些显示出智能可调乳化性和出色的反应性空心球（HSs），最终获得相应的反应性Janus纳米板（RJP）。油质水净化的潜力。