We report a general method to synthesize polymeric Janus nanosheets (PJS) by sequential RAFT grafting from a template particle surface. Layer number and composition of the PJS are tunable by feeding sequence and type of monomers. The cPNIPAM–PS PJS is flexible and thermal responsive, which can form a scrolled superstructure. A dually responsive cPAA–PNIPAM PJS is derived by hydrolysis of cPtBA–PNIPAM. Accordingly, stability of the emulsion with the cPAA–PNIPAM PJS is triggered by alternation of pH or/and temperature.

中文翻译：

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通过模板RAFT聚合制备聚合Janus纳米片

我们报告了一种一般的方法，可以通过从模板颗粒表面进行连续RAFT接枝来合成聚合物Janus纳米片（PJS）。PJS的层数和组成可根据进料顺序和单体类型进行调整。所述Ç PNIPAM-PS PJS是柔性的和热响应性，可以形成滚动上层建筑。双重反应的c PAA–PNIPAM PJS是通过c P t BA–PNIPAM的水解而得到的。因此，在乳液的稳定性Ç PAA-PNIPAM PJS受pH值和/或温度的交替触发。