Department of Applied Chemistry, Graduate School of Science and Engineering, University of Toyama, Toyama, Japan.
Colloids Surf B Biointerfaces. 2012 Mar 1;91:215-8. doi: 10.1016/j.colsurfb.2011.11.012. Epub 2011 Nov 11.
A polyampholyte brush was prepared on the surface of a quartz prism by surface-initiated reversible addition-fragmentation chain-transfer polymerization of methacrylic acid (MA) and 2-(dimethylamino)ethyl methacrylate (DMAEMA) at a monomer ratio of 1:1. The sum frequency generation method indicated that water molecules at the amphoteric polymer brush-water interfaces were not greatly oriented in comparison with those at the surfaces of bare quartz prisms, and negatively charged PolyMA and positively charged PolyDMAEMA brushes. The small perturbation effect of an amphoteric polymer brush on the structure of vicinal water was in accordance with the tendency of aqueous solution and thin films of amphoteric polymers observed by using Raman and infrared spectroscopies, respectively.
在石英棱镜表面通过甲基丙烯酸（MA）和 2-（二甲氨基）乙基甲基丙烯酸酯（DMAEMA）的表面引发可逆加成-断裂链转移聚合，制备了两性梳形聚合物刷，单体摩尔比为 1:1。和聚 MA 和聚 DMAEMA 刷。两性聚合物刷对相邻水分子结构的小扰动效应与使用拉曼和红外光谱分别观察到的两性聚合物水溶液和薄膜的趋势一致。
