Helmholtz-Zentrum Hereon, Institute of Membrane Research, Max-Planck-Straße 1, Geesthacht, 21502, Germany.
Macromol Rapid Commun. 2021 Aug;42(16):e2100235. doi: 10.1002/marc.202100235. Epub 2021 May 31.
SNIPS stands for a membrane fabrication technique that combines the evaporation induced self-assembly of the block copolymers and the classical nonsolvent induced phase separation. It is a one-step readily scalable technique to fabricate integral asymmetric isoporous membranes. The prominent developments in the last decade have carved out a niche for SNIPS as a potential technique to fabricate next generation isoporous membranes. In the last decade, a rich polymer library and variety of membrane postmodification routes have been successfully implemented to fabricate SNIPS membranes having the desired pore functionality. Some of these membranes form soft nanochannels in hydrated state due to swelling of the pore wall, i.e., the pore forming block of the block copolymer. These membranes having soft nanochannels have demonstrated the potential to perform several challenging separation tasks in ultrafiltration and nanofiltration. This paper highlights the currently accessible pore functionality, the strategies to tune the swelling of the soft nanochannels, the potential applications, and future perspectives of these membranes.
SNIPS 代表一种膜制造技术，它结合了嵌段共聚物的蒸发诱导自组装和经典的非溶剂诱导相分离。这是一种一步式的、易于扩展的技术，可制造整体不对称的各向同性多孔膜。在过去十年中，SNIPS 作为一种制造下一代各向同性多孔膜的潜在技术得到了广泛的发展。在过去的十年中，已经成功地实施了丰富的聚合物库和多种膜后修饰途径，以制造具有所需孔功能的 SNIPS 膜。其中一些膜在水合状态下由于孔壁的溶胀形成软纳滤通道，即嵌段共聚物的孔形成嵌段。这些具有软纳滤通道的膜已经证明了在超滤和纳滤中执行几项具有挑战性的分离任务的潜力。本文重点介绍了目前可获得的孔功能、调节软纳滤通道溶胀的策略、这些膜的潜在应用和未来展望。
