Study of the surface tension of polymer solutions: theory and experiments. Good solvent conditions

Ober, R.; Paz, Laura; Taupin, C.; Pincus, P.; Boileau, Sylvie

doi:10.1021/ma00235a010

Cited by 84 publications

(75 citation statements)

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“…A discrepancy between theory and experiment was observed which could be due to the low molecular weight ( 104) The theoretical predictions are related to the semidilute concentration range. In fact, the expression semi-dilute range deserves some discussion : if all the authors agree on the definition of the lower limit (overlap concentration) the upper limit is not so well understood Experimentally, the situation is not clear [33] and we consider that an upper limit of this range is 0.25 as in [ 11 ]. We evaluated the lower limit of the semi-dilute concentration range using reference 19.…”

Section: Resultsmentioning

confidence: 99%

“…In a previous paper [ 11 ], the surface tension of semi-dilute polymer solutions in good solvent conditions was examined both experimentally and theoretically. An [12][13][14], only one experimental study [12] (Mw 104) refers to 0 conditions.…”

Section: Physics Abstractsmentioning

confidence: 99%

“…Cyclohexane was purchased from Merck (Uvasol quality) and bromocyclohexane, purchased from Merck (zur Synthese) was redistilled under reduced pressure (20 torr) before use. (Table I), from the same origin as in [11]. [24][25].…”

Section: Physics Abstractsmentioning

confidence: 99%

“…The temperature was controlled within a range of 0.05 OC. The apparatus was a modified Lauda tensiometer as described in [11].…”

Section: Physics Abstractsmentioning

confidence: 99%

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Study of the surface tension of polymer solutions: theory and experiments in theta solvent conditions

et al. 1983

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Resumé. 2014 Abstract. 2014 A study of the surface tension of semi-dilute polymer solutions in theta solvent conditions is presented. Theoretical predictions are given for the two cases when the interface is attractive or repulsive. The Cahn approach for the interfacial tension is used in order to calculate the interfacial tension in the mean field theory of polymer solutions. The measurements, were performed on two polymer theta solvent systems : polydimethylsiloxanebromocyclohexane at 29 °C and polystyrene-cyclohexane at 34°C for the attractive and repulsive cases respectively. The well-known ring method was used. The agreement between theory and experiments is good. The theoretical predictions and the results are compared with those obtained in good solvent case that we reported.in a previous paper. The transition 03B8 solvent-good solvent is studied for the attractive system.

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Section: Resultsmentioning

confidence: 99%

Section: Physics Abstractsmentioning

confidence: 99%

Section: Physics Abstractsmentioning

confidence: 99%

“…The temperature was controlled within a range of 0.05 OC. The apparatus was a modified Lauda tensiometer as described in [11].…”

Section: Physics Abstractsmentioning

confidence: 99%

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Study of the surface tension of polymer solutions: theory and experiments in theta solvent conditions

et al. 1983

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“…[9][10][11][12] The galacturonic acid containing matrix polymers exist in a form referred to as pectin or pectinic acid and are based on a backbone rich in a-(1-4)-linked D-galacturonic acid (the homopolygalacturonans) interspersed with (1-2)-and (1-2,4)-substituted 1-rhamnose moieties, which are usually further linked with other neutral sugar polymers, forming "hairy" domains or side chains. The carboxyl groups of some of the galacturonan residues are methyl esterified to various degrees.…”

Section: Introductionmentioning

confidence: 99%

Polymer concentration profile near a liquid-solid interface: evanescent wave ellipsometry study

Kim¹,

Peiffer²,

Chen³

et al. 1989

Macromolecules

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The phase retardation angle, ~~. as a function of the incident angle was measured to study adsorption and depletion of polymers near a solid substrate from a solution by use of an evanescent wave ellipsometry technique. A lightly sulfonated ionomer dissolved in a polar solvent displayed an appreciable interfacial adsorption layer, while the nonionic precursor in ethyl acetate exhibits a depleted concentration profile. The results are in good agreement with adsorption or depletion layer profiles obtained previously by other techniques, i.e., X-ray fluorescence for polymer adsorption and optical fluorescence evanesent wave technique for depletion.

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Adsorption

Rao¹,

Dhinojwala²

2003

Encyclopedia of Polymer Science and Technology

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Polymer adsorption finds widespread applications in the stabilization of colloids, food processing, paints, lubrication, and surface modification. In the past two decades there have been numerous studies aimed at improving our understanding of this important phenomenon. This article reviews the instrumental and theoretical advances made in this area and presents important experimental results concerning adsorbed polymers.

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Study of the surface tension of polymer solutions: theory and experiments. Good solvent conditions

Cited by 84 publications

References 10 publications

Study of the surface tension of polymer solutions: theory and experiments in theta solvent conditions

Study of the surface tension of polymer solutions: theory and experiments in theta solvent conditions

Polymer concentration profile near a liquid-solid interface: evanescent wave ellipsometry study

Adsorption

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