Formation of dynamic duolayer systems at the air/water interface by using non-ionic hydrophilic polymers

Prime, Emma L., Tran, Diana N. H., Leung, Andy H. M., Sunartio, Devi, Qiao, Greg G. and Solomon, David H. 2013, Formation of dynamic duolayer systems at the air/water interface by using non-ionic hydrophilic polymers, Australian journal of chemistry, vol. 66, no. 7, pp. 807-813, doi: 10.1071/CH13094.

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Title Formation of dynamic duolayer systems at the air/water interface by using non-ionic hydrophilic polymers
Author(s) Prime, Emma L.ORCID iD for Prime, Emma L.
Tran, Diana N. H.
Leung, Andy H. M.
Sunartio, Devi
Qiao, Greg G.
Solomon, David H.
Journal name Australian journal of chemistry
Volume number 66
Issue number 7
Start page 807
End page 813
Total pages 7
Publisher CSIRO Publishing
Place of publication Clayton, Vic.
Publication date 2013
ISSN 0004-9425
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Summary The inclusion of a water-soluble polymer, poly(vinyl pyrrolidone) (PVP), into a surface active film composition before application to the water surface leads to the formation of a dynamic duolayer; a novel surface film system. This duolayer shows improved surface viscosity over the monolayer compound alone, while the addition of polymer maintains other film properties such as evaporation control and equilibrium spreading pressure. Brewster Angle Microscopy shows that the duolayer film undergoes a different formation mechanism upon film compression, and the resultant surface pressure/area isotherm is different at lower surface pressures indicating the PVP is present on the water surface at these pressures and squeezed out to the water subphase at higher pressures. The addition of water-soluble polymers to form a dynamic duolayer provides a unique way to produce defect-free and tightly packed films while polymer is associated with the film. This finding provides new knowledge for the design of surface films with improved properties with potential applications in many areas.
Language eng
DOI 10.1071/CH13094
Field of Research 030603 Colloid and Surface Chemistry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2013, CSIRO
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