Colloids and Surfaces A: Physicochemical and Engineering Aspects
The interaction between polyelectrolyte complexes made from poly(dimethyldiallylammonium chloride) (PDMDAAC) and poly(maleic acid-co-α-methylstyrene) (P(MS-α-MeSty)) and cellulosic materials
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Cited by (44)
Adsorption behavior of poly(dimethyl-diallylammonium chloride) on pulp fiber studied by cryo-time-of-flight secondary ion mass spectrometry and cryo-scanning electron microscopy
2014, Applied Surface ScienceCitation Excerpt :In this system, a low-molecular weight, concretive agent with high cationic charge density, such as poly(dimethyl-diallylammonium chloride), PDADMAC, is used in conjunction with a high-molecular weight, anionic flocculent, such as poly(acrylamide), A-PAM (Fig. 1) [1]. Although the adsorption mechanism of PDAMAC has been investigated previously[2,3], there are no studies which have looked into the flocculation behavior in detail. This is because, generally, only a small amount of PDADMAC is retained on the pulp fiber.
Positively charged polymers (Polycations)
2012, Developments in Clay ScienceCitation Excerpt :The destabilization of dilute clay mineral suspensions by positively charged polymers has been described by numerous authors (Black and Vilaret, 1969; Black et al., 1965, 1966; Chang et al., 1997; Kimura et al., 1976; Narkis et al., 1968; Pressman, 1967; Ruehrwein and Ward, 1952; Shyluk, 1964; Ueda and Harada, 1968a; Yorke, 1973). Polycations have also served as aggregants of suspended silica and metal hydr(oxide) particles (Bolto et al., 2001; Dixon et al., 1967; Iler, 1971; Kane et al., 1964a,b,c; Li et al., 1998; Linke and Booth, 1960; Posselt et al., 1968; Shin et al., 2002; Shubin, 1997; Shyluk, 1964; Wang and Audebert, 1988), as well as polymer fibres and latex particles (Goossens and Luner, 1976; Gregory, 1969, 1973; Lindström and Söremark, 1976; Petzold and Lunkwitz, 1995; Swerin et al., 1997; Tanaka et al., 1999), and humic substances (Bratskaya et al., 2004; Narkis et al., 1968; Rebhun et al., 1969). Since positively charged polymers can function as both coagulants and flocculants (cf. Chapter 2), they can act as effective aggregants even at low concentrations (< 5 ppm) and in the absence of neutral electrolytes.
Controlling the water uptake of wood by polyelectrolyte adsorption
2011, Progress in Organic CoatingsCitation Excerpt :Beside the adsorption entropy, which mainly controls adsorption free enthalpy of macromolecules cationically charged polyelectrolytes obtain an additional enthalpic contribution (via Coulomb interactions between negatively charged surface sites and positive charges along the polymer chain) to the adsorption free enthalpy driving the force of polyelectrolyte adsorption. In particular, for cellulose it was found that the adsorbed amount of strong cationic polyelectrolytes depends on the molecular weight of polyelectrolytes, while the adsorption on inorganic fillers is not significantly influenced by the molecular weight of the polyelectrolyte sample [3]. Cationic polyelectrolytes were also successfully employed to control the wettability and net surface charge of kaolin (china clay), cotton and further cellulose-based materials [4,5].
Using jet mixing to prepare polyelectrolyte complexes: Complex properties and their interaction with silicon oxide surfaces
2010, Journal of Colloid and Interface ScienceAdsorption of polyelectrolyte multilayers and complexes on silica and cellulose surfaces studied by QCM-D
2008, Colloids and Surfaces A: Physicochemical and Engineering Aspects