The asymmetric ABC-type Janus polymer composite nanorods are synthesized by the in situ preferential growth of functional materials against the molecular bottlebrush containing a triblock copolymer of poly(ethylene oxide)-b-poly(2-methacryloyloxyethyl pentynoate-g-poly(acrylic acid))-b-polystyrene. PEO and PS single chains are terminated onto the opposite ends of the composite nanorods. The two polymer chains are responsible for amphiphilic performance, while the composite nanorod is responsible for the functionality. The Janus nanorods can stand vertically at an emulsion interface, making the interfaces easily functionalized and manipulated. Protection of the PAA molecular bottlebrush via electrostatic interaction is important to obtaining individual nanorods at high solid contents. A huge family of Janus composite nanorods is expected by changing the compositions of the two polymer chains and the nanorod.

中文翻译：

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含嵌段共聚物的分子刷的Janus复合纳米棒

不对称ABC型Janus聚合物复合纳米棒是通过功能性材料相对于含有聚（环氧乙烷）-b-聚（2-甲基丙烯酰氧基乙基戊酸戊酸酯-g-聚（丙烯酸）的三嵌段共聚物的分子刷）的原位优先生长合成的））- b-聚苯乙烯。PEO和PS单链终止于复合纳米棒的相对两端。两条聚合物链负责两亲性能，而复合纳米棒负责功能。Janus纳米棒可以在乳剂界面上垂直站立，从而使界面易于功能化和操作。通过静电相互作用保护PAA分子刷对于获得高固含量的单个纳米棒非常重要。通过改变两条聚合物链和纳米棒的组成，有望获得一系列巨大的Janus复合纳米棒。