Abstract
The surface pressure-molecular area isotherm of the chlorophyll a-plastoquinone 9 binary mixture has been studied at various molar compositions at the nitrogen-water interface. The surface pressure-molecular area isotherms of the mixtures are interpreted using the additivity rule and surface phase rule in two dimensions The mixed system conforms to ideality regardless of the molar fraction. The mixed monolayers at molar fractions of chlorophyll a between 0.3 and 0.8 show two collapse pressures, one of which (the lower) varies with the film composition with the other collapse nearly constant at approximately 27 mN m-1. Two collapses are also evident in the surface potential-molecular area isotherms. This apparent dependence of the collapse on the film composition is interpreted as a partial miscibility between the components, while complete miscibility is suggested at 0.9 mole fraction of chlorophyll a, where a single collapse pressure is observed.
| Original language | English |
|---|---|
| Pages (from-to) | 1578-1581 |
| Number of pages | 4 |
| Journal | Langmuir |
| Volume | 8 |
| Issue number | 6 |
| State | Published - Dec 1 1992 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Colloid and Surface Chemistry
Cite this
Mixed monolayer studies of chlorophyll a and plastoquinone 9 at the nitrogen-water interface. / Es-Sounni, Ahmed; Leblanc, Roger.
In: Langmuir, Vol. 8, No. 6, 01.12.1992, p. 1578-1581.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mixed monolayer studies of chlorophyll a and plastoquinone 9 at the nitrogen-water interface
AU - Es-Sounni, Ahmed
AU - Leblanc, Roger
PY - 1992/12/1
Y1 - 1992/12/1
N2 - The surface pressure-molecular area isotherm of the chlorophyll a-plastoquinone 9 binary mixture has been studied at various molar compositions at the nitrogen-water interface. The surface pressure-molecular area isotherms of the mixtures are interpreted using the additivity rule and surface phase rule in two dimensions The mixed system conforms to ideality regardless of the molar fraction. The mixed monolayers at molar fractions of chlorophyll a between 0.3 and 0.8 show two collapse pressures, one of which (the lower) varies with the film composition with the other collapse nearly constant at approximately 27 mN m-1. Two collapses are also evident in the surface potential-molecular area isotherms. This apparent dependence of the collapse on the film composition is interpreted as a partial miscibility between the components, while complete miscibility is suggested at 0.9 mole fraction of chlorophyll a, where a single collapse pressure is observed.
AB - The surface pressure-molecular area isotherm of the chlorophyll a-plastoquinone 9 binary mixture has been studied at various molar compositions at the nitrogen-water interface. The surface pressure-molecular area isotherms of the mixtures are interpreted using the additivity rule and surface phase rule in two dimensions The mixed system conforms to ideality regardless of the molar fraction. The mixed monolayers at molar fractions of chlorophyll a between 0.3 and 0.8 show two collapse pressures, one of which (the lower) varies with the film composition with the other collapse nearly constant at approximately 27 mN m-1. Two collapses are also evident in the surface potential-molecular area isotherms. This apparent dependence of the collapse on the film composition is interpreted as a partial miscibility between the components, while complete miscibility is suggested at 0.9 mole fraction of chlorophyll a, where a single collapse pressure is observed.
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UR - http://www.scopus.com/inward/citedby.url?scp=0343058569&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0343058569
VL - 8
SP - 1578
EP - 1581
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 6
ER -