文献类型：期刊文献

英文题名：Piperazine-modulated bis-tris-based polyester-amide nanofilm for high-performance nanofiltration membrane

作者：Han, Rui[1];Zheng, Yan[1];Xu, Zhen-Liang[1,2];Chen, Bai-He[4];Wang, Jiao[1,3];Irfan, Muhammad[1];Xu, Sun-Jie[1,2,4]

机构：[1]East China Univ Sci & Technol, Natl Engn & Technol Res Ctr Comprehens Utilizat Sa, Chem Engn Res Ctr, Sch Chem Engn,Membrane Sci & Engn R&D Lab, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Elect Chem Innovat Inst, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Natl Sch Elite Engineers, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2026

卷号：8

外文期刊名：ADVANCED MEMBRANES

收录：EI(收录号：20261120248068);WOS:【ESCI(收录号:WOS:001724365000001)】；

基金：The authors gratefully acknowledge the financial support received from 2025 Basic Research Plan of Science and Technology Commission of Shanghai Municipality (25JD1404900), National Natural Science Foundation of China (22078092, 22208101 and 21176067) and National Key R&D Program of China (2021YFB3801103 and 2021YFB3801101).

语种：英文

外文关键词：Polyester-amide membrane; Bis(2-hydroxyethyl) amino-tris; (hydroxymethyl)methane; Interfacial polymerization; Nanofiltration; Desalination

摘要：Polyester-amide (PEA) membranes combine the chemical stability of polyester (PE) with the highly cross-linked structure of polyamide (PA), achieving a synergistic breakthrough in selectivity, permeance, and stability. This study presents a strategy that employs a bulky polyhydroxy monomer (Bis(2-hydroxyethyl) amino-tris(hydroxymethyl)methane, Bis-Tris) and a highly reactive amine monomer (PIP) as combined aqueous-phase monomers for interfacial polymerization. A systematic comparison of the structural and physicochemical properties of PIP-PA, Bis-Tris-PE, and Bis-Tris-PIP PEA nanofilms demonstrates that the PEA nanofilm exhibits a unique microstructure combining the porous characteristics of PE with the nodular morphology of PA, along with appropriate thickness, surface charge, hydrophilicity, and pore size. The B0.3PIP0.3 membrane exhibits outstanding overall performance, achieving a water permeance of 16.8 L m(-2) h(-1)& centerdot;bar(-1) and a Na2SO4 rejection of 99.6%, both superior to the NF 270 membrane. Moreover, it integrates the alkaline resistance characteristic of PA with the chlorine resistance of PE, along with notable pressure resilience and long-term stability. Molecular dynamics simulations revealed a more uniform and controllable monomer diffusion in the Bis-Tris/PIP co-monomer system. Molecular crosslinked models further identified free volume among the three membranes, offering a theoretical basis for their performance differences. This study underscores the promise of a multifunctional co-monomer strategy in tailored NF membranes.