超交叉连接的同性块共聚物膜具有强大的溶剂抵抗性和定制的孔径尺寸,用于精确的分离
Wenjing Wang1, Zhe Shu1, Hongxing Wei1
1Center for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou, 310014, China.
Small (Weinheim an der Bergstrasse, Germany)
|December 14, 2023
概括
新的超交叉连接方法可以创建强大的,耐溶剂的同孔膜. 这些先进的分离膜保持可调节的孔径,使有机溶剂在各种应用中能够精确分离.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 分离科学 分离科学
背景情况:
- 异孔块共聚合物膜提供精确的分离能力,但具有较差的溶剂抗性,限制了它们的使用.
- 开发具有可调节孔径的大小的耐溶剂同孔膜仍然是分离技术的一个重大挑战.
研究的目的:
- 为制备具有增强溶剂耐受性和可调节孔径的大小的自承载性同孔膜.
- 为了证明膜修饰的超交联方法的普遍性和非破坏性.
主要方法:
- 采用一种简单而强大的超交叉连接方法,在同孔膜内创建一个刚性网络.
- 过度交叉连接的过程被优化,以保持原来的孔径大小和同孔状结构.
主要成果:
- 由此产生的超交联异孔膜在各种溶剂中表现出优异的结构和分离稳定性.
- 膜在各种有机溶剂中表现出长期稳定性 (数月至数年).
- 超交叉连接被证明是适用于具有不同孔径大小和化学成分的膜的多功能策略.
结论:
- 超交叉连接是一种新的,非破坏性的方法,用于增强异孔膜的溶剂抵抗力.
- 这种方法可以制备可定制的,耐溶剂的同孔膜,以准确地分离有机溶剂.
- 该研究成功地使用开发的膜证明了精确的纳米粒子分离,突出了它们的实际应用性.
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