1988
DOI: 10.1016/0021-9797(88)90188-9
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Adsorption of nonionic polyacrylamide on sodium montmorillonite: Relation between adsorption, ξ potential, turbidity, enthalpy of adsorption data and 13C-NMR in aqueous solution

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Cited by 47 publications
(16 citation statements)
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“…A large difference in maximum adsorption occurs between PAM A and PAM N. Plateau values for charged high molecular weight PAM (anionic and cationic) adsorbing onto kaolinite range from ≈0.03-0.05 mg m −2 [7,24,25] to 0.05 (pH 8.5)-0.18 mg m −2 (pH 4.5) [26]. In contrast, studies of non-ionic PAM N adsorption give plateau values of ≈0.82-2.0 mg m −2 onto kaolinite [27,28] and smectite particles [29]. An increase in plateau value with molecular weight [25] and polymer dosage [26] has been noted for anionic PAM, this may account for some of the differences reported literature values.…”
Section: Adsorption Isothermsmentioning
confidence: 84%
“…A large difference in maximum adsorption occurs between PAM A and PAM N. Plateau values for charged high molecular weight PAM (anionic and cationic) adsorbing onto kaolinite range from ≈0.03-0.05 mg m −2 [7,24,25] to 0.05 (pH 8.5)-0.18 mg m −2 (pH 4.5) [26]. In contrast, studies of non-ionic PAM N adsorption give plateau values of ≈0.82-2.0 mg m −2 onto kaolinite [27,28] and smectite particles [29]. An increase in plateau value with molecular weight [25] and polymer dosage [26] has been noted for anionic PAM, this may account for some of the differences reported literature values.…”
Section: Adsorption Isothermsmentioning
confidence: 84%
“…The newly formed network increases the resistance of the system that leads to strong interaction between the clay particles, and consequently, the mechanical coupling becomes longer ranged and fixed. Thus, the yield point becomes steady 17 Na–bentonite has the ability to form a gel because of its high swelling property.…”
Section: Resultsmentioning
confidence: 99%
“…It is generally considered that the edges are more reactive sites than the basal plane surfaces (28). Furthermore, it is accepted that the edge charges are positive in acid or neutral solutions.…”
Section: Effect Of Nacl and Cacl 2 Concentration On The Tx-100 Adsorpmentioning
confidence: 99%