Preparation and characterization of polyethersulfone/N-phthaloyl-chitosan ultrafiltration membrane with antifouling property

被引：69

作者：

Ghiggi, Fernanda F. ^{[1
]}

Pollo, Liliane D. ^{[1
]}

Cardozo, Nilo S. M. ^{[2
]}

Tessaro, Isabel C. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Dept Chem Engn, Lab Membrane Separat Proc, Rua Ramiro Barcelos 2777, BR-90035007 Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Dept Chem Engn, Lab Polymer Proc Technol, Rua Engn Luiz Englert S-N, BR-90040040 Porto Alegre, RS, Brazil

来源：

EUROPEAN POLYMER JOURNAL | 2017年 / 92卷

关键词：

Ultrafiltration membrane; Polyethersulfone; N-phthaloyl-chitosan; Hydrophilic modification; Antifouling; ANTIBACTERIAL ACTIVITY; HYBRID MEMBRANE; HIGH-FLUX; NANOPARTICLES; PERFORMANCE; FABRICATION; ADSORPTION; ADDITIVES; BSA;

D O I：

10.1016/j.eurpolymj.2017.04.030

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In order to reduce fouling, membranes are modified by several techniques, among them, blending with hydrophilic additives are the most practical. N-phthaloyl-chitosan (NPhthCs) was obtained by the reaction of chitosan with phthalic anhydride in dimethylformamide and used as additive in the casting solution. Polyethersulfone (PES) membranes without and with NPhthCs were prepared by phase inversion via immersion precipitation. Modified membranes showed higher hydraulic permeance (27 +/- 4 L m(-2) h(-1) bar(-1)) and hydrophilicity by contact angle (CA) measurement (CA = 56 +/- 5 degrees) than pure PES membranes. In bovine serum albumin (BSA) membrane filtration experiments, PES/NPhthCs membranes showed higher permeate fluxes, but the relative flux loss and recovery and also the BSA retention (90 +/- 2% PES and 86 +/- 10% PES/NPhthCs membranes) were not significantly different. Resistance-in-series analysis showed that both concentration polarization and fouling resistances were significantly lower for PES/NPhthCs membranes, indicating that the chemical modification improved the antifouling property of these membranes.

引用

页码：61 / 70

页数：10

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