Dissolution rates of pure nonionic surfactants

Bing-Hung Chen, Clarence A. Miller, John M. Walsh, Patrick B. Warren, J. Noel Ruddock, Peter R. Garrett, Francoise Argoul, Christophe Leger

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Small drops of the pure linear alcohol ethoxylates C12E5 and C12E6 were injected into water at temperatures below their cloud points, and the times required for their dissolution were measured using videomicroscopy. Separately the rates of growth of the various liquid crystalline intermediate phases formed during penetration experiments with these surfactants in vertical linear cells were measured using videomicroscopy. It was found from both types of experiments that the dissolution process was controlled by diffusion, not by kinetics of phase transformation at interfaces. Effective diffusivities of the various phases were calculated from the data obtained and were found to be of order 10-10 m2/s. Finally, interferometry was used to measure concentration distributions as a function of time during dissolution of the lamellar phase of C12E5. Diffusivity in the micellar solution was found to increase with increasing surfactant concentration with a further increase occurring at the concentration where the lamellar phase formed. The results were consistent with the effective diffusivities determined from the videomicroscopy experiments and with available values in the literature obtained by other techniques.

Original languageEnglish
Pages (from-to)5276-5283
Number of pages8
JournalLangmuir
Volume16
Issue number12
DOIs
Publication statusPublished - 2000 Jun 13

Fingerprint

Nonionic surfactants
diffusivity
dissolving
Dissolution
surfactants
Surface-Active Agents
Surface active agents
phase transformations
Experiments
interferometry
alcohols
penetration
Interferometry
Alcohols
Phase transitions
kinetics
liquids
Crystalline materials
cells
water

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Chen, B-H., Miller, C. A., Walsh, J. M., Warren, P. B., Noel Ruddock, J., Garrett, P. R., ... Leger, C. (2000). Dissolution rates of pure nonionic surfactants. Langmuir, 16(12), 5276-5283. https://doi.org/10.1021/la9913497
Chen, Bing-Hung ; Miller, Clarence A. ; Walsh, John M. ; Warren, Patrick B. ; Noel Ruddock, J. ; Garrett, Peter R. ; Argoul, Francoise ; Leger, Christophe. / Dissolution rates of pure nonionic surfactants. In: Langmuir. 2000 ; Vol. 16, No. 12. pp. 5276-5283.
@article{cff5cf6550a642698494285bad13d25c,
title = "Dissolution rates of pure nonionic surfactants",
abstract = "Small drops of the pure linear alcohol ethoxylates C12E5 and C12E6 were injected into water at temperatures below their cloud points, and the times required for their dissolution were measured using videomicroscopy. Separately the rates of growth of the various liquid crystalline intermediate phases formed during penetration experiments with these surfactants in vertical linear cells were measured using videomicroscopy. It was found from both types of experiments that the dissolution process was controlled by diffusion, not by kinetics of phase transformation at interfaces. Effective diffusivities of the various phases were calculated from the data obtained and were found to be of order 10-10 m2/s. Finally, interferometry was used to measure concentration distributions as a function of time during dissolution of the lamellar phase of C12E5. Diffusivity in the micellar solution was found to increase with increasing surfactant concentration with a further increase occurring at the concentration where the lamellar phase formed. The results were consistent with the effective diffusivities determined from the videomicroscopy experiments and with available values in the literature obtained by other techniques.",
author = "Bing-Hung Chen and Miller, {Clarence A.} and Walsh, {John M.} and Warren, {Patrick B.} and {Noel Ruddock}, J. and Garrett, {Peter R.} and Francoise Argoul and Christophe Leger",
year = "2000",
month = "6",
day = "13",
doi = "10.1021/la9913497",
language = "English",
volume = "16",
pages = "5276--5283",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "12",

}

Chen, B-H, Miller, CA, Walsh, JM, Warren, PB, Noel Ruddock, J, Garrett, PR, Argoul, F & Leger, C 2000, 'Dissolution rates of pure nonionic surfactants', Langmuir, vol. 16, no. 12, pp. 5276-5283. https://doi.org/10.1021/la9913497

Dissolution rates of pure nonionic surfactants. / Chen, Bing-Hung; Miller, Clarence A.; Walsh, John M.; Warren, Patrick B.; Noel Ruddock, J.; Garrett, Peter R.; Argoul, Francoise; Leger, Christophe.

In: Langmuir, Vol. 16, No. 12, 13.06.2000, p. 5276-5283.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Dissolution rates of pure nonionic surfactants

AU - Chen, Bing-Hung

AU - Miller, Clarence A.

AU - Walsh, John M.

AU - Warren, Patrick B.

AU - Noel Ruddock, J.

AU - Garrett, Peter R.

AU - Argoul, Francoise

AU - Leger, Christophe

PY - 2000/6/13

Y1 - 2000/6/13

N2 - Small drops of the pure linear alcohol ethoxylates C12E5 and C12E6 were injected into water at temperatures below their cloud points, and the times required for their dissolution were measured using videomicroscopy. Separately the rates of growth of the various liquid crystalline intermediate phases formed during penetration experiments with these surfactants in vertical linear cells were measured using videomicroscopy. It was found from both types of experiments that the dissolution process was controlled by diffusion, not by kinetics of phase transformation at interfaces. Effective diffusivities of the various phases were calculated from the data obtained and were found to be of order 10-10 m2/s. Finally, interferometry was used to measure concentration distributions as a function of time during dissolution of the lamellar phase of C12E5. Diffusivity in the micellar solution was found to increase with increasing surfactant concentration with a further increase occurring at the concentration where the lamellar phase formed. The results were consistent with the effective diffusivities determined from the videomicroscopy experiments and with available values in the literature obtained by other techniques.

AB - Small drops of the pure linear alcohol ethoxylates C12E5 and C12E6 were injected into water at temperatures below their cloud points, and the times required for their dissolution were measured using videomicroscopy. Separately the rates of growth of the various liquid crystalline intermediate phases formed during penetration experiments with these surfactants in vertical linear cells were measured using videomicroscopy. It was found from both types of experiments that the dissolution process was controlled by diffusion, not by kinetics of phase transformation at interfaces. Effective diffusivities of the various phases were calculated from the data obtained and were found to be of order 10-10 m2/s. Finally, interferometry was used to measure concentration distributions as a function of time during dissolution of the lamellar phase of C12E5. Diffusivity in the micellar solution was found to increase with increasing surfactant concentration with a further increase occurring at the concentration where the lamellar phase formed. The results were consistent with the effective diffusivities determined from the videomicroscopy experiments and with available values in the literature obtained by other techniques.

UR - http://www.scopus.com/inward/record.url?scp=0033721395&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033721395&partnerID=8YFLogxK

U2 - 10.1021/la9913497

DO - 10.1021/la9913497

M3 - Article

VL - 16

SP - 5276

EP - 5283

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 12

ER -

Chen B-H, Miller CA, Walsh JM, Warren PB, Noel Ruddock J, Garrett PR et al. Dissolution rates of pure nonionic surfactants. Langmuir. 2000 Jun 13;16(12):5276-5283. https://doi.org/10.1021/la9913497