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首页> 外文期刊>ACS Macro Letters >Design, Synthesis, and Use of Y-Shaped ATRP/NMP Surface Tethered Initiator
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Design, Synthesis, and Use of Y-Shaped ATRP/NMP Surface Tethered Initiator

机译:Y形ATRP / NMP表面束缚引发剂的设计,合成和使用

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摘要

Heterogeneous polymer brushes on surfaces can be easily formed from a binary initiator on a silicon oxide substrate where two different types of polymers can be grown side-by-side. Herein, we designed a new Y-shaped binary initiator using straightforward chemistry for "grafting from" polymer brushes. This initiator synthesis takes advantage of the Passerini reaction, a multicomponent reaction combining two initiator sites and one surface linking site. This Y-shaped binary initiator can be synthesized in three steps with a higher yield than other similar initiators reported in the literature, and can be performed on a multigram scale. We were able to attach the initiator to a silicon oxide substrate and successfully grow polymer brushes from both initiators (separately and in combination), confirmed by NEXAFS, AFM, and contact angle.
机译:表面上的异质聚合物刷可以很容易地由二元引发剂形成在氧化硅衬底上,在该衬底上可以并排生长两种不同类型的聚合物。本文中,我们使用简单的化学方法设计了一种新的Y形二元引发剂,用于“从”聚合物刷中“接枝”。这种引发剂的合成利用了Passerini反应的优势,Passerini反应是将两个引发剂位点和一个表面连接位点结合在一起的多组分反应。与文献中报道的其他类似引发剂相比,这种Y形二元引发剂可以三步合成,并且产率更高,并且可以以多克规模进行。通过NEXAFS,AFM和接触角的确认,我们能够将引发剂附着到氧化硅衬底上,并成功地从两种引发剂中(单独和组合使用)生长出聚合物刷。

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