Tailoring the chemistry of polyelectrolytes to control their adsorption on cellulosic surfaces

被引：6

作者：

Enarsson, Lars-Erik ^{[1
]}

Wagberg, Lars ^{[1
]}

Carlen, Joakim ^{[2
]}

Ottosson, Niklas ^{[3
]}

机构：

[1] Royal Inst Technol, Dept Fibre & Polymer Technol, SE-10044 Stockholm, Sweden

[2] Eka Chem AB, SE-44580 Bohus, Sweden

[3] VTC Elastoteckn AB, SE-66222 Amal, Sweden

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2009年 / 340卷 / 1-3期

基金：

瑞典研究理事会;

关键词：

Cationic polyacrylamide; Hydrophobic modification; Polyelectrolyte adsorption; Non-ionic interactions; Silicon oxide; Pulp fibres; Model cellulose surface; RETENTION AIDS; CATIONIC POLYACRYLAMIDES; MECHANICAL PULPS; FIBERS; FLOCCULATION; ACRYLAMIDE; KINETICS;

D O I：

10.1016/j.colsurfa.2009.03.017

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：

The adsorption of two types of cationic polyacrylamides in the presence of a background electrolyte was studied on substrates including silicon oxide, kraft pulp fibres and thin films of regenerated cellulose. One of the polyelectrolytes was a conventional cationic polyacrylamide (MeCPAM) and the other was a benzyl-containing derivative of cationic polyacrylamide (BzCPAM). It was found that the aromatic substituents of BzCPAM strongly enhanced the adsorption on substrates of hydrophobically modified silicon oxide when a background electrolyte was present. A similar effect was also seen in the case of BzCPAM adsorption on unbleached pulp fibres, but in this case MeCPAM also exhibited a strong adsorption at high background electrolyte concentrations. On bleached pulp fibres, BzCPAM maintained a high adsorption up to a concentration of 100 mM NaCl whereas MeCPAM adsorption showed a significant decrease at this salt concentration. On model cellulose films, the adsorption of BzCPAM was similar to that of MeCPAM and the non-ionic interactions with cellulose appeared weak, since there was no adsorption of either polyelectrolyte in 300 mM NaCl. (C) 2009 Elsevier B.V. All rights reserved

引用

页码：135 / 142

页数：8

共 37 条

[1] HYDROLYSIS OF CATIONIC POLYACRYLAMIDES [J].

AKSBERG, R ;

WAGBERG, L .

JOURNAL OF APPLIED POLYMER SCIENCE, 1989, 38 (02) :297-304

[2]

CARDILE RP, 2003, Patent No. 6517677

[3]

Cho MS, 2002, J IND ENG CHEM, V8, P131

[4] REFLECTOMETRY AS A TOOL FOR ADSORPTION STUDIES [J].

DIJT, JC ;

STUART, MAC ;

FLEER, GJ .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 1994, 50 :79-101

[5]

Fleer G.J., 1998, Polymers at Interfaces

[6] Mechanisms of flocculation with poly(ethylene oxide) and novel cofactors [J].

Gaudreault, R ;

van de Ven, TGM ;

Whitehead, MA .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2005, 268 (1-3) :131-146

[7] Influence of polymeric additives on short-time creep of paper [J].

Gimaker, Magnus ;

Horvath, Andrew ;

Wagberg, Lars .

NORDIC PULP & PAPER RESEARCH JOURNAL, 2007, 22 (02) :217-227

[8] Model films of cellulose:: I.: Method development and initial results [J].

Gunnars, S ;

Wågberg, L ;

Stuart, MAC .

CELLULOSE, 2002, 9 (3-4) :239-249

[9]

Horn D., 1978, Progress in Colloid and Polymer Science, V65, P251, DOI [10.1007/BFb0117226, DOI 10.1007/BFB0117226]

[10] On the indirect polyelectrolyte titration of cellulosic fibers.: Conditions for charge stoichiometry and comparison with ESCA [J].

Horvath, AE ;

Lindström, T ;

Laine, J .

LANGMUIR, 2006, 22 (02) :824-830

← 1 2 3 4 →