Factors affecting the interfacial polymerization of polyamide active layers for the formation of polyamide composite membranes
Factors affecting the interfacial polymerization of polyamide active layers for the formation of polyamide composite membranes
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DOI：
10.1002/app.11257
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发表时间：
2002-12-09
影响因子：
3
通讯作者：
Lee, KH
中科院分区：
文献类型：
--
作者：
Jegal, J;Min, SG;Lee, KH
以哌嗪、间苯二胺和均苯三甲酰氯为单体，以聚砜超滤膜为支撑体，通过界面聚合制备了聚酰胺（PA）复合膜。研究了通过改变PA活性层的特性来影响复合膜性能的因素。首先，改变单体组成，并使用对PA溶解性比己烷更好的有机溶剂（苯和1,2 - 二氯乙烷）进行界面聚合。作为能够改变水相和有机相之间形成的界面性质的化学添加剂，使用了正丙醇和异丙醇，并且使用相转移催化剂如苄基三乙基溴化铵来提高PA活性层的聚合效率。使用各种分析方法，如场发射扫描显微镜、原子力显微镜、差示扫描量热法和渗透测试，仔细研究了所制备的PA复合膜的特性，包括其渗透性能和形态。（C）2002威利期刊公司
Polyamide (PA) composite membranes were prepared by interfacial polymerization with piperazine, m-phenylene diamine, and trimesoyl chloride as monomers and polysulfone ultrafiltration membranes as supports. Factors affecting the performances of the composite membranes by changing the characteristics of the PA active layers were studied. First, the monomer compositions were varied, and organic solvents (benzene and 1,2-dichloroethane) with better solubility for PA than hexane were used for the interfacial polymerization. As chemical additives capable of changing the property of the interface formed between water and organic phases, n-propanol and i-propanol were used, and phase-transfer catalysts such as triethyl benzyl ammonium bromide were used to improve the polymerization efficiency of the PA active layers. The characteristics of the PA composite membranes prepared, including their permeation properties and morphology, were carefully studied with various analytical methods, such as field emission scanning microscopy, atomic force microscopy, differential scanning calorimetry, and permeation testing. (C) 2002 Wiley Periodicals, Inc.