Adsorption of polyethyleneimine and polymethacrylic acid onto synthesized hematite

被引：32

作者：

Chibowski, S. ^{[1
]}

Patkowski, J. ^{[1
]}

Grzadka, E. ^{[1
]}

机构：

[1] Marie Curie Sklodowska Univ, Dept Chem, Fac Radiochem & Chem Colloids, PL-20031 Lublin, Poland

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 329卷 / 01期

关键词：

Polymer adsorption; Hematite; Polyethyleneimine; Polymethacrylic acid; Zeta potential; Surface charge density; POTENTIOMETRIC TITRATION; IONIC-STRENGTH; BINDING; RESIN; MODEL;

D O I：

10.1016/j.jcis.2008.09.075

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Art influence of different functional groups of polymer, its molecular weight, polydispersity ratio (M-w/M-n) and presence of impurities on its adsorption in different PH values (3, 6 and 9) onto synthesized hematite (Fe2O3) Was measured. A structure of adsorbed macromolecules of PMA and PEI was obtained according to S-F theory. Two polymers were Used: polymethacrylic acid (PMA) of 6500 and 75,100 molecular weight as well as polyethyleneimine (PEI) 25,000 commercial and fractionated. Electrokinetic properties of the interface oxide-polymer solution (surface charge density and zeta potential) were also measured as well as adsorption layer thicknesses (With Use of viscosimetric measurements). Obtained data show, that all above-mentioned factors do influence not only the adsorption process itself but also a surface charge, zeta potential and structure of adsorbed polymer layers on polmer/hematite interface. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：1 / 10

页数：10

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