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Preparation of cationic polymer surfaces by grafting polymerization

โœ Scribed by H. Yasuda; B. Sherry; M. A. Ei-Nokaly; S. E. Friberg

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
480 KB
Volume
27
Category
Article
ISSN
0021-8995

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โœฆ Synopsis

A cationic polymer surface with extensive capacity for adsorption of anionic surfactants was prepared by graft polymerization of vinyl pyridine onto a plasma-treated polypropylene surface. The nitrogen was quaternized in order to obtain the cationic sites. The concentration dependence of adsorption from high electrolyte solution of the anionic surfactant was similar to the one on a solid surface from solutions with no added electrolyte. The hydrophobic contribution to the adsorption was experienced at surfactant concentrations far below its critical micellization.

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โœ Noboru Saito; Shuzo Yamashita ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 334 KB ๐Ÿ‘ 2 views

Surface-charge-mosaic-modified ultrafiltration membranes with charged domains of various sizes (500, 100, or 50 mm) were prepared by two-step laser-induced surface graft polymerization using a striped photomask. First, the surface of an ultrafiltration membrane was treated with 4-vinylpyridine after