Capillary Microfluidic-Assisted Surface Structuring,ACS Macro Letters

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Capillary Microfluidic-Assisted Surface Structuring
ACS Macro Letters ( IF 5.1 ) Pub Date : 2020-02-18 , DOI: 10.1021/acsmacrolett.9b00921
Wei Li ₁ , Wenbo Sheng ₁ , Erik Wegener ₁ , Yunhao Du ₁ , Bin Li ₂ , Tao Zhang _{3,

4} , Rainer Jordan ₁

Affiliation

A facile and universal oxygen-tolerant, capillary microfluidic-derived, controlled radical polymerization for surface structuring (gradient and patterned polymer brushes) is reported. A syringe pump and a filter paper sheet are used as capillary microfluidic to supply the reaction solution (monomer, solvent, and ligand) to a sandwich-shaped setup by placing a flat copper plate onto an ATRP initiator-modified substrate and resulting in gradient polymer brush formation with controlled thickness, steepness, and grafting area, polymers are showing the high chain-end fidelity. Two different polymer brushes (binary polymer brushes) can be simultaneously grown from both ends of the initiator modified substrate by using this method, which can be used to study the interfacial properties of different polymer brushes.

中文翻译：

毛细管微流体辅助表面结构化

报道了一种用于表面结构化（梯度和图案化聚合物刷）的简便通用的耐氧、毛细管微流体衍生的受控自由基聚合。注射泵和滤纸片用作毛细管微流体，通过将平面铜板放置在 ATRP 引发剂改性的基板上并产生梯度聚合物，将反应溶液（单体、溶剂和配体）供应到三明治形装置通过控制厚度、陡度和接枝面积的刷子形成，聚合物显示出高链端保真度。采用该方法可以从引发剂改性基板的两端同时生长出两种不同的聚合物刷（二元聚合物刷），可用于研究不同聚合物刷的界面性能。

更新日期：2020-02-19

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