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胺/胺和三聚化之间的协同界面聚合:NF膜制剂的新反应

Ruijun Zhang¹, Jie Yang¹, Jiayu Tian¹

¹School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, PR China.

|May 11, 2024

概括

一种新的协同界面聚合法创造了无缺陷的聚胺 (PEA) 纳米过 (NF) 膜. 这种快速合成为先进的净水应用提供了卓越的水透性和盐排斥.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

聚胺 (PEA) 薄膜复合材料 (TFC) 纳米过 (NF) 膜提供竞争性性能,以防和耐性而闻名.
现有的PEA膜合成通常需要催化或面临在实现无缺陷结构的局限性.

研究的目的:

探索协同界面聚合的新概念,以快速和无缺陷的PEA薄膜形成.
调查"胺-胺"合单元在激活界面聚合物的作用.
制造和描述用于净化水的高性能PEA-NF膜.

主要方法:

使用水胺 (醇) 和二胺 (皮佩拉) 与三聚化 (TMC) 的协同界面聚合.
快速启动的聚合模式,没有催化.
使用高分辨率质谱法 (HRMS) 进行全面的物理化学表征.

主要成果:

通过协同界面聚合,快速形成无缺陷的PEA薄膜.
鉴定出"胺-胺"合单元对于激活聚合反应至关重要.
制造的PEA-NF膜 (0.1 w/v% 醇,0.04 w/v% PIP,0.1 w/v% TMC) 呈现出18.5 L·m-2·h-1·bar-1的纯水透性和95.5%的MgSO4排斥.

结论:

协同界面聚合为合成高性能PEA膜提供了一个低成本,快速和有效的途径.
开发的PEA-NF膜表现出卓越的性能,超过了大多数报告的PEA NF膜.
这种方法为制造用于净化水的先进膜提供了新的可能性.

关键词:

钻石是二氧化物中的一种.胺是一种胺.界面聚合的介面聚合.纳米过膜是一种纳米过膜.聚胺是一种聚胺.

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