Counterion effect of tetraalkylammonium and long-chain alkylammonium salts in the interaction with nonionic polymers

Saito, Setsuo; Kitamura, Kanji

doi:10.1016/0021-9797(71)90129-9

Cited by 36 publications

(14 citation statements)

References 11 publications

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“…Many studies extensively investigated aqueous mixtures of oppositely charged polymers and surfactants, from an academic [1][2][3][4][5][6] and a practical point of view [7][8][9]. The surfactant headgroup has a significant influence on the interaction of cationic [10][11][12][13][14] and anionic [15] surfactants with nonionic [10][11][12][13][14][15] and oppositely charged polymers [16][17][18]. It also plays an important role in the systems of long-chain alkyltrimethylammonium salts and nonionic polymer gels [19].…”

Section: Introductionmentioning

confidence: 99%

Counterion Effect of Cationic Surfactants Upon the Interaction with Poly(methacrylic acid)

Anghel¹,

Saito²,

Iovescu

et al. 2010

J Surfact & Detergents

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This work investigates decylammonium salts, with inorganic (chloride and thiocyanate) and organic (acetate and butyrate) counterions, in interaction with poly(methacrylic acid) (PMA). The study is conducted by means of surface tension, relative viscosity and pH measurements. The role of the methyl group in PMA appears by comparison with analogous mixtures of poly(acrylic acid) (PAA). In aqueous solution, a non-cooperative interaction between the surfactant and the hydrophobic microdomains (HMD) of PMA starts first. With surfactant addition, micellar aggregates bound onto the polymer chain appear at a concentration T 1 , which is higher than for the analogous PAA systems, but lower than the respective CMC. T 1 is lower for chloride than for thiocyanate and lower for acetate than for butyrate. Depending on the counterion, the HMD conceal or expose carboxyl groups, with influence upon the interaction strength and the bulk and surface behavior. Stronger interactions and maxima of surface tension and relative viscosity appear for the systems with organic counterions. An estimation of the interaction strength shows weaker surfactant interactions with PMA than with PAA, and that acetate induces the strongest interaction while thiocyanate the weakest.

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Section: Introductionmentioning

confidence: 99%

Counterion Effect of Cationic Surfactants Upon the Interaction with Poly(methacrylic acid)

Anghel¹,

Saito²,

Iovescu

et al. 2010

J Surfact & Detergents

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“…It has been observed that the interaction between uncharged water-soluble polymer is much easier with more facile anionic surfactants [11][12][13]. The uncharged water-soluble polymers appear weakly associated [14,15] with cationic surfactants, and deriving forces responsible for cationic surfactant-water-soluble polymer interactions is poorly understood in comparison to that of anionic surfactants.…”

Section: Introductionmentioning

confidence: 96%

Interactions of Polyacrylamide with Cationic Surfactants: Thermodynamic and Surface Parameters

Niranjan

Shukla

Upadhyay

2011

J Surfact & Detergents

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The aggregation behaviour of two cationic surfactants, viz. cetyl trimethyl ammonium bromide (CTAB) and N-cetyl pyridinium chloride (CPC), in different concentrations of water-soluble polyacrylamide has been studied in alkaline medium by electrical conductivity and surface tension measurements. A decrease in the critical micelle concentration (CMC) of the surfactant with an increase in polymer content in the mixture was observed. The thermodynamic and surface parameters have been determined and discussed. The results indicate that micellisation becomes more favourable at higher polymer content.

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“…On the other hand, it is reported that cationic surfactants interact with these neutral polymers very weakly or not at all [1,11,12]. These indifferent behaviours of cationic surfactants were evidenced by rather indirect methods such as viscometry, cloud point change, solubilization, and surface tension.…”

Section: Introductionmentioning

confidence: 97%

Binding of hexadecylammonium surfactants to water-soluble neutral polymers

Shirahama

Himuro

Takisawa

1987

Colloid & Polymer Sci

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The binding of hexadecyltrimethylammonium bromide and hexadecyldimethyl-2-hydroxyethylammonium bromide to neutral polymers was measured by a potentiometric titration method using surfactant selective electrodes. Binding to poly(vinyl alcohol) was slightly cooperative, while that to poly(ethylene oxide) lacked the cooperativity. Poly(vinyl pyrrolidone) did not bind them at all. Binding affinity as estimated by a distribution coefficient of the cationic surfactants between the bulk and polymer phases is about 2 orders of magnitude smaller than that of anionic sodium dodecyl sulfate. The heat of binding was estimated from the temperature dependence of the distribution coefficient and found to be endothermic. It is imagined that the cationic surfactants are simply partitioned between the aqueous bulk phase and the polymer coil phase which is regarded as aqueous organic mixed solvent.

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Counterion effect of tetraalkylammonium and long-chain alkylammonium salts in the interaction with nonionic polymers

Cited by 36 publications

References 11 publications

Counterion Effect of Cationic Surfactants Upon the Interaction with Poly(methacrylic acid)

Counterion Effect of Cationic Surfactants Upon the Interaction with Poly(methacrylic acid)

Interactions of Polyacrylamide with Cationic Surfactants: Thermodynamic and Surface Parameters

Binding of hexadecylammonium surfactants to water-soluble neutral polymers

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