Effects of acyl chloride monomer functionality on the properties of polyamide reverse osmosis (RO) membrane

	Effects of acyl chloride monomer functionality on the properties of polyamide reverse osmosis (RO) membrane
	Wang TY ; Dai L ; Zhang QF ; Li A ; Zhang SB
刊名	journal of membrane science
	2013
卷号	440 页码:48-57
关键词	FILM-COMPOSITE MEMBRANES THIN-FILM M-PHENYLENEDIAMINE FLUX ENHANCEMENT TETRAACYL CHLORIDE PERFORMANCE LAYER
ISSN号	0376-7388
通讯作者	zhang sb
中文摘要	in this work, three novel polyacyl chloride monomers: 2,4,4',6-biphenyl tetraacyl chloride (btac), 2,3',4,5',6-biphenyl pentaacyl chloride (bpac) and 2,2',4,4',6,6'-biphenyl hexaacyl chloride (bhac) have been successfully synthesized. for the purpose of investigating the effects of the polyacyl chloride functionality on the reverse osmosis (ro) membrane properties, the thin film composite (tfc) ru membranes were prepared through interfacial polymerization of trimesoyl chloride (tmc), btac, bpac, and bhac with m-phenylenediamine (mpda) respectively. the membrane properties including physicochemical properties and separation performances were evaluated by a combination of attenuated total reflection fourier transform infrared (atr ft-ir) spectroscopy, x-ray photoelectron spectroscopy (xps), scanning electron microscopy (sem), atomic force microscopy (afm), contact angle (ca), streaming potential measurements as well as cross-flow reverse osmosis tests. the results reveal that the functionality of the acid chloride monomer strongly influences the properties of the ru membrane. as the functionality of the acid chloride monomer increased, the resulting membrane skin layer became more negatively charged, thinner and smoother. however, the change of hydrophilicity did not seem to follow any rule or trend, which could be ascribed to the cooperative effects of surface roughness and the carboxylic acid group content. in addition, all the four membranes exhibited close salt rejection rates according to the ru separation performance tests. however, with the increase of acid chloride functionality the permeate flux of the resulting ru membrane became lower, due to a combination of the increase in the carboxylic acid groups on the membrane surface, lower surface roughness, and lower mobility of the crosslinked polyamide chains. (c) 2013 elsevier by. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000319501500006
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49711]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wang TY,Dai L,Zhang QF,et al. Effects of acyl chloride monomer functionality on the properties of polyamide reverse osmosis (RO) membrane[J]. journal of membrane science,2013,440:48-57.
APA	Wang TY,Dai L,Zhang QF,Li A,&Zhang SB.(2013).Effects of acyl chloride monomer functionality on the properties of polyamide reverse osmosis (RO) membrane.journal of membrane science,440,48-57.
MLA	Wang TY,et al."Effects of acyl chloride monomer functionality on the properties of polyamide reverse osmosis (RO) membrane".journal of membrane science 440(2013):48-57.