“…However, it was easily attacked by active chlorine through the reversible N-chlorination on the amide bond (N-H) and the irreversible aromatic ring-chlorination via Orton rearrangement, which would destroy the integrity of the rejection layer and deteriorate the membrane separation performance. [13][14][15] Based on the methods of improving the membrane permeability, chlorine-resistant TFC membranes can also be obtained meanwhile. Yu et al synthesized TFC RO membranes by using two novel reaction monomers of mphenylenediamine-4-methyl (MMPD) in aqueous phase and cyclohexane-1,3,5-tricarbonyl chloride (HTC) in organic phase.…”