一种引入甲基宏发起剂到聚硫膜的方法,用于通过原子转移基极聚合物通过原子转移基极聚合物接种Zwitterionic聚合物
Xiuhua Sun1, Xinyao Wang1, Fuyu Sun2
1School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, PR China.
Langmuir : the ACS journal of surfaces and colloids
|September 27, 2025
概括
一种新的甲基化 (CM) 方法有效地将宏基发起物移植到水中的多硫膜上. 随后的原子转移基聚合 (ATRP) 与聚硫乙烯甲基酸盐 (PSBMA) 产生了具有更好的性能的先进的防表面.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 表面修改 表面修改
背景情况:
- 聚硫 (PSf) 膜被广泛使用,但受到污染的影响.
- 防表面的修改对于提高膜性能和寿命至关重要.
- 现有的改造方法往往涉及危险的化学品和恶劣的条件.
研究的目的:
- 开发一种新的,环保的甲基化 (CM) 方法,用于聚硫 (PSf) 修饰.
- 使用原子转移基聚合物 (ATRP) 将聚硫乙烯甲酸盐 (PSBMA) 移植到PSf膜上.
- 为了评估修改后的膜的防腐性能和性能.
主要方法:
- 一个单步水相CM反应,使用甲基甲,盐酸和可回收的相移催化剂 (PTC).
- 通过ATRP将PSBMA移植到CM修改的PSf上.
- 使用X射线光电子光谱学 (XPS) 和富里埃变换红外光谱学 (FTIR) 的表征.
- 膜性能评估,包括水接触角度 (WCA),纯水流量 (PWF),蛋白质排斥和流量回收率.
主要成果:
- 在PSf表面上成功将宏基 (-CH2Cl) 和PSBMA移植到PSf表面.
- 修改后的膜呈现出显著减少的WCA (低至25°).
- 观察到PWF和蛋白质排斥的同时增强.
- 在防改造后,流量回收率从72.6%提高到92.6%.
结论:
- 新的水相CM-ATRP方法为防膜修改提供了一条高效,更绿色的路线.
- 开发的方法避免了危险的催化剂和溶剂,使用稳定和可回收的PTC.
- 经过修改的PSf膜显示出优越的防性质和增强的性能,显示出水处理应用的巨大潜力.
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