Abstract A strategy for the synthesis of well defined poly(ethylene glycol)-block-poly(methyl methacrylate) diblock copolymers containing trityl ether acid cleavable junctions is demonstrated. This approach is achieved by using a combination of poly(ethylene glycol) macroinitiator containing a trityl ether end group, which is susceptible to acid cleavage, and atom transfer radical polymerization technique. The trityl ether linkage between blocks can be readily cleaved in solution or in solid phase under very mild acid condition, which has been confirmed by 1H NMR. These diblock copolymers have been used to successfully fabricate nanoporous thin films by acid cleavage of trityl ether junction followed by complete removal of poly(ethylene glycol) block. The fabricated nanoporous thin films may have a wide range of application such as Recessed Nanodisk-array electrode (RNE) or as a template to fabricate nanoelectrode array for senor applications. Graphical Abstract

中文翻译：

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含三苯甲醚酸可裂解连接基团的两亲性聚（乙二醇）-嵌段-聚（甲基丙烯酸甲酯）的合成及其自组装成有序纳米多孔薄膜

摘要 展示了一种合成含有三苯甲醚酸可裂解连接点的明确定义的聚（乙二醇）-嵌段-聚（甲基丙烯酸甲酯）二嵌段共聚物的策略。这种方法是通过使用含有三苯甲基醚端基的聚（乙二醇）大分子引发剂和原子转移自由基聚合技术的组合来实现的，该基团对酸裂解敏感。在非常温和的酸性条件下，嵌段之间的三苯甲基醚键可以很容易地在溶液或固相中裂解，这已通过 1H NMR 证实。这些二嵌段共聚物已被用于通过酸裂解三苯甲基醚接点然后完全去除聚（乙二醇）嵌段来成功制造纳米多孔薄膜。制造的纳米多孔薄膜可能具有广泛的应用，例如嵌入式纳米盘阵列电极（RNE）或作为模板来制造用于传感器应用的纳米电极阵列。图形概要