MONOLAYER STUDIES OF A NEW SURFACTANT CARBOXYPORPHYRIN.

Michel Ringuet, Jacques Gagnon, Roger Leblanc

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The surface chemistry of a new surfactant carboxyporphyrin is described. This molecule forms well-behaved monomolecular layers at the air-water interface. The surface pressure-area isotherms are given for subphases at various pH's and temperatures. Significant pH and temperature effects are obtained. The monolayer films are transferred onto quartz slides by using the Langmuir-Blodgett technique. Spectrophotometric studies of the LB films show an acid-base equilibration to occur within the monolayer leading to mixtures of free base and dicationic porphyrin. Free base/dication ratios in the various LB films are presented.

Original languageEnglish
Pages (from-to)700-704
Number of pages5
JournalLangmuir
Volume2
Issue number6
StatePublished - Nov 1 1986
Externally publishedYes

Fingerprint

Surface-Active Agents
Monolayers
Surface active agents
Langmuir Blodgett films
surfactants
pH effects
Quartz
Porphyrins
Surface chemistry
chutes
porphyrins
Thermal effects
Isotherms
temperature effects
isotherms
quartz
chemistry
acids
Molecules
Acids

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

MONOLAYER STUDIES OF A NEW SURFACTANT CARBOXYPORPHYRIN. / Ringuet, Michel; Gagnon, Jacques; Leblanc, Roger.

In: Langmuir, Vol. 2, No. 6, 01.11.1986, p. 700-704.

Research output: Contribution to journalArticle

Ringuet, M, Gagnon, J & Leblanc, R 1986, 'MONOLAYER STUDIES OF A NEW SURFACTANT CARBOXYPORPHYRIN.', Langmuir, vol. 2, no. 6, pp. 700-704.
Ringuet, Michel ; Gagnon, Jacques ; Leblanc, Roger. / MONOLAYER STUDIES OF A NEW SURFACTANT CARBOXYPORPHYRIN. In: Langmuir. 1986 ; Vol. 2, No. 6. pp. 700-704.
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