Surface pressure gradients formed during the compression of poly(vinyl stearate) monolayers

Peng J.B. and Barnes G.T. (1990) Surface pressure gradients formed during the compression of poly(vinyl stearate) monolayers. Langmuir, 6 3: 578-582.

Author Peng J.B.
Barnes G.T.
Title Surface pressure gradients formed during the compression of poly(vinyl stearate) monolayers
Journal name Langmuir   Check publisher's open access policy
ISSN 0743-7463
Publication date 1990-01-01
Sub-type Article (original research)
Volume 6
Issue 3
Start page 578
End page 582
Total pages 5
Subject 1505 Marketing
1606 Political Science
Abstract Surface pressures have been measured at various positions along the center line of the trough during the compression of monolayers of vinyl stearate (VS) and poly(vinyl stearate) (PVS). With VS there was no appreciable inhomogeneity, but with PVS a significant surface pressure gradient formed. This exhibited an approximately linear decrease in surface pressure from the moving barrier to the end of the trough. The inhomogeneity of the PVS monolayers during compression depends on the technique of spreading and on the method of compression. No technique was found which would eliminate the surface pressure gradient. Even when the film was held at a high surface pressure for 90 min, there was still a significant surface pressure gradient. Much of the earlier data on PVS monolayers, particularly the apparent annealing effect, can be explained by the present findings.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 23 Aug 2016, 15:24:26 EST by System User