Supramolecular association induced by Fe(III) in low molecular weight sodium polyacrylate

被引：46

作者：

Baigorri, Roberto ^{[1
]}

Garcia-Mina, Jose Maria

Gonzalez-Gaitano, Gustavo

机构：

[1] Univ Navarra, Dept Chem & Soil Sci, Pamplona 31080, Spain

[2] Inabonos Roulier Grp, R&D Dept, Orcoyen 31160, Spain

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2007年 / 292卷 / 2-3期

关键词：

polyacrylic acid; iron; supramolecular associations; dynamic light scattering; gel permeation chromatography; FTIR; utratiltration;

D O I：

10.1016/j.colsurfa.2006.06.027

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：

A supramolecular association between the sodium salt of a low molecular weight polyacrylic acid (PAA, M-w = 1200) and Fe(111) is described and characterized using ultrafiltration (UF), gel permeation chromatography (GPC), dynamic light scattering (DLS), and infrared spectrometry (FTIR). The GPC and DLS experiments indicate the presence of massive and polydisperse aggregates of PAA linked by Fe(Ill) of ca. 100 nm in size. FTIR analysis of the symmetric and asymmetric carboxylate stretches for the polyacrylate and the different fractions indicate the bridging effect of the metal in the formation of the clusters, which incorporate practically all the iron present in solution. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：212 / 216

页数：5