Solution and surface composition gradients via microfluidic confinement: Fabrication of a statistical-copolymer-brush composition gradient

被引：56

作者：

Xu, Chang

Barnes, Susan E.

Wu, Tao

Fischer, Daniel A.

DeLongchamp, Dean M.

Batteas, James D.

Beers, Kathryn L. ^{[1
]}

机构：

[1] Natl Inst Standards & Technol, Polymers Div, Gaithersburg, MD 20899 USA

[2] NIST, Ceram Div, Gaithersburg, MD 20899 USA

[3] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA

来源：

ADVANCED MATERIALS | 2006年 / 18卷 / 11期

关键词：

D O I：

10.1002/adma.200502341

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A stable solution composition gradient is generated inside a microchannel by varying the relative flow rates of two solutions that differ in composition. This solution gradient is used to synthesize a surface-grafted statistical-copolymer-brush composition gradient via surface-initiated atom transfer radical polymerization (ATRP; see schematic). Near-edge absorption fine structure spectroscopy confirms the continuous transition of surface composition from one end of the substrate to the other.

引用

页码：1427 / +

页数：5

共 35 条

[1] Polymer brushes - surface immobilized polymers [J].