Ultra-thin microporous membranes based on macrocyclic pillar[n]arene for efficient organic solvent nanofiltration was written by Fu, Wenming;Huang, Yangzheng;Deng, Luyao;Sun, Jiahao;Li, Shao-Lu;Hu, Yunxia. And the article was included in Journal of Membrane Science in 2022.Application of 4422-95-1 This article mentions the following:
Organic solvent nanofiltration (OSN) is a green, environmentally friendly and sustainable separation technol. High-performance OSN membranes are expected to play a critical role in the field of chem. separation involving organic solvents. However, traditional OSN membranes suffer from the constraints on perm-selectivity. Herein, we introduced macrocyclic mols. with intrinsic angstrom-size cavity, pillar[n]arene (P[n]a, n = 5, 6), as a novel aqueous monomer to react with trimesoyl chloride (TMC) to prepare highly perm-selective thin-film composite (TFC) OSN membranes through interfacial polymerization The prepared TFC-P[n]a membranes exhibit ultra-thin selective layer thickness of sub-10 nm and possess permanent intrinsic microporous structure, which endows the membrane with high perm-selectivity. Especially, the TFC-P[6]a membrane exhibits a high methanol permeance (8.10 L m-2 h-1 bar-1) and a low mol. weight cut-off (MWCO) of 300 g mol-1. In addition, the prepared TFC-P[n]a membranes exhibit mol. sieving function and could discriminate mols. with similar mol. weights but different shapes. Our work provides an insight of material design for the preparation of next-generation high-performance organic solvent nanofiltration membranes. In the experiment, the researchers used many compounds, for example, Trimesoylchloride (cas: 4422-95-1Application of 4422-95-1).
Trimesoylchloride (cas: 4422-95-1) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Application of 4422-95-1
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics