丙烯酸
聚电解质
嫁接
吸附
高分子化学
材料科学
逐层
化学工程
图层(电子)
辐照
化学
共聚物
纳米技术
有机化学
聚合物
复合材料
物理
核物理学
工程类
作者
Guanglu Wu,Feng Shi,Zhiqiang Wang,Zan Liu,Xi Zhang
出处
期刊:Langmuir
[American Chemical Society]
日期:2009-02-06
卷期号:25 (5): 2949-2955
被引量:36
摘要
In this article, we have demonstrated a universal method for improving the stability of polyelectrolyte multilayer films by designing a photoreactive polyanion as the building block for layer-by-layer (LbL) self-assembly. By grafting an azido group into poly(acrylic acid), we synthesized a photoreactive polyanion, which can induce the photo-crosslinking between the azido group and polymeric backbone under UV irradiation. Our results show that after photocross-linking, the stability of the polyelectrolyte multilayer is greatly improved. Considering that the polyanion-bearing azido group is highly reactive, we have shown that it can be used to stabilize different LbL films. Moreover, by taking advantage of the different stability before and after UV irradiation, a patterned surface can be fabricated, which could be used as a template for selective adsorption.
科研通智能强力驱动
Strongly Powered by AbleSci AI