Vinyl stearate monolayers for Langmuir-Blodgett film applications

G. S. Galletti; A. Guiseppi-Elie

doi:10.1016/0040-6090(85)90467-5

Vinyl stearate monolayers for Langmuir-Blodgett film applications

G. S. Galletti, A. Guiseppi-Elie

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The development of Langmuir-Blodgett films for applications generally exploits either organization or orientation or both in these extremely thin films. The final organization of built-up monolayers may be influenced appreciably by the choice of film deposition conditions. In this report we document the effects of some relevant environmental variables on the monolayer isotherms and monolayer stability of the vinyl ester, vinyl stearate. The effect of subphase temperature, barrier displacement rate and choice of casting solvent are addressed. Temperature was found to be the most dominant variable influencing the adsorption isotherm and monolayer stability. For barrier displacement rates over the range 1-7 cm min^-1 there was little effect on the adsorption isotherm. Benzene (spreading coefficient, S_o/w(20 °C) = -7.58) when used as a casting solvent yields a more dramatic "liquid" to "solid" transition and a larger initial area per molecule for detection when compared with heptane (S_o/w(20 °C) = +1.47).

Original language	English (US)
Pages (from-to)	163-172
Number of pages	10
Journal	Thin Solid Films
Volume	132
Issue number	1-4
DOIs	https://doi.org/10.1016/0040-6090(85)90467-5
State	Published - Oct 1985

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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title = "Vinyl stearate monolayers for Langmuir-Blodgett film applications",

abstract = "The development of Langmuir-Blodgett films for applications generally exploits either organization or orientation or both in these extremely thin films. The final organization of built-up monolayers may be influenced appreciably by the choice of film deposition conditions. In this report we document the effects of some relevant environmental variables on the monolayer isotherms and monolayer stability of the vinyl ester, vinyl stearate. The effect of subphase temperature, barrier displacement rate and choice of casting solvent are addressed. Temperature was found to be the most dominant variable influencing the adsorption isotherm and monolayer stability. For barrier displacement rates over the range 1-7 cm min-1 there was little effect on the adsorption isotherm. Benzene (spreading coefficient, So/w(20 °C) = -7.58) when used as a casting solvent yields a more dramatic {"}liquid{"} to {"}solid{"} transition and a larger initial area per molecule for detection when compared with heptane (So/w(20 °C) = +1.47).",

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AU - Galletti, G. S.

AU - Guiseppi-Elie, A.

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N2 - The development of Langmuir-Blodgett films for applications generally exploits either organization or orientation or both in these extremely thin films. The final organization of built-up monolayers may be influenced appreciably by the choice of film deposition conditions. In this report we document the effects of some relevant environmental variables on the monolayer isotherms and monolayer stability of the vinyl ester, vinyl stearate. The effect of subphase temperature, barrier displacement rate and choice of casting solvent are addressed. Temperature was found to be the most dominant variable influencing the adsorption isotherm and monolayer stability. For barrier displacement rates over the range 1-7 cm min-1 there was little effect on the adsorption isotherm. Benzene (spreading coefficient, So/w(20 °C) = -7.58) when used as a casting solvent yields a more dramatic "liquid" to "solid" transition and a larger initial area per molecule for detection when compared with heptane (So/w(20 °C) = +1.47).

AB - The development of Langmuir-Blodgett films for applications generally exploits either organization or orientation or both in these extremely thin films. The final organization of built-up monolayers may be influenced appreciably by the choice of film deposition conditions. In this report we document the effects of some relevant environmental variables on the monolayer isotherms and monolayer stability of the vinyl ester, vinyl stearate. The effect of subphase temperature, barrier displacement rate and choice of casting solvent are addressed. Temperature was found to be the most dominant variable influencing the adsorption isotherm and monolayer stability. For barrier displacement rates over the range 1-7 cm min-1 there was little effect on the adsorption isotherm. Benzene (spreading coefficient, So/w(20 °C) = -7.58) when used as a casting solvent yields a more dramatic "liquid" to "solid" transition and a larger initial area per molecule for detection when compared with heptane (So/w(20 °C) = +1.47).

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Vinyl stearate monolayers for Langmuir-Blodgett film applications

Abstract

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