Synthesis, characterization, and tunable wettability of poly(ionic liquid) brushes via nitroxide-mediated radical polymerization (NMP)

被引：15
作者：
Yang Wu [1 ]
He XiaoJing [1 ]
Gao JinZhang [1 ]
Guo Hao [1 ]
He XiaoYan [1 ]
Wan Fei [1 ]
Zhao XiuLi [1 ]
Yu Yan [1 ]
Pei Ben [1 ]
机构：
[1] NW Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2010年 / 55卷 / 31期
基金：
中国国家自然科学基金;
关键词：
poly(ionic liquid) brushes; tunable wettability; grafted modification; silicon surface; surface-initiated nitroxide-mediated radical polymerization; IONIC LIQUID; SURFACE; MONOLAYERS; POLYMERS; STYRENE; SILICON;
D O I：
10.1007/s11434-010-3288-z
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Well-defined poly (ionic liquid) brushes with tunable wettability are successfully synthesized via nitroxide-mediated radical polymerization. X-ray photoelectron spectroscopy, attenuated total reflection infrared spectroscopy and static water contact angle measurements are used to monitor each step. Ellipsometry, nuclear magnetic resonance (H-1 and C-13) spectra and gel permeation chromatographic measurements reveal that there is a linear increase in polymer film thickness with polymerization time, indicating that chain growth from the surface is a controlled/"living" polymerization. The surface morphology was measured by atomic force microscopy. Moreover, the surfaces of the poly (ionic liquid) brushes with tunable wettability and reversible switching between hydrophilicity and hydrophobicity can be easily achieved by counteranion exchange.
引用
收藏
页码：3562 / 3568
页数：7
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