Surface Modification of Polyamide Reverse Osmosis Membranes with Hydrophilic Dendritic Polymers

被引:0
作者
Sarkar, Abhijit [1 ]
Carver, Peter I. [1 ]
Zhang, Tracy [1 ]
Merrington, Adrian [1 ]
Bruza, Keneth J. [1 ]
Rousseau, Joseph L. [1 ]
Keinath, Steven E. [1 ]
Dvornic, Petar R. [1 ]
机构
[1] Michigan Mol Inst, Midland, MI 48640 USA
来源
NEW MEMBRANES AND ADVANCED MATERIALS FOR WASTEWATER TREATMENT | 2009年 / 1022卷
关键词
X-RAY-DIFFRACTION; STRUCTURAL DEVELOPMENT; NATURAL-RUBBER; UNIAXIAL DEFORMATION;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The effects of surface modification of commercial reverse osmosis (RO) polyamide membranes were studied as a function of flux/rejection and surface properties. Selected ultra-low pressure RO membranes were modified by in situ crosslinking of either hyperbranched polymers (HBPs) or polyamidoamine (PAMAM) dendrimers and polyethylene glycols (PEG). As expected, surface and chemical modification of membranes significantly reduced their contact angles as measured by dynamic as well as static contact angle measurement techniques. Lower contact angles indicate more hydrophilic membranes with potential for increased resistance to fouling by hydrophobic foulants, such as biofoulants and organic materials.
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页码:187 / 207
页数:21
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