Abstract
The extensive surface area A and the conjugate surface pressure Π are introduced into a cooperatively interacting hydrocarbon chain model. The exact statistical mechanical method of solution is extended to accommodate the new variables. The previously discussed 3/2 order transition becomes a critical point in phase diagrams involving Π and A. The values of the usual critical exponents are β=1, δ=2, γ=γ′=1, and α=0, and the 3/2 order exponents appear on the critical isobar, Π=Πc. The model shows Π-A phase behavior which is strikingly different from the P–V behavior, in agreement with the difference between the experimental Π-A monolayer behavior and the P–V bilayer behavior. This supports the theory that the bilayer is two weakly coupled monolayers.
References
12
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Dates
Type | When |
---|---|
Created | 22 years, 6 months ago (Feb. 27, 2003, 3:57 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 9, 2024, 8:50 a.m.) |
Indexed | 3 months, 1 week ago (May 20, 2025, 6:36 a.m.) |
Issued | 50 years, 1 month ago (Aug. 1, 1975) |
Published | 50 years, 1 month ago (Aug. 1, 1975) |
Published Print | 50 years, 1 month ago (Aug. 1, 1975) |
@article{Nagle_1975, title={Chain model theory of lipid monolayer transitions}, volume={63}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.431416}, DOI={10.1063/1.431416}, number={3}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Nagle, John F.}, year={1975}, month=aug, pages={1255–1261} }