Formation of Dynamic Duolayer Systems at the Air/Water Interface by using Non-ionic Hydrophilic Polymers
Emma L Prime, Diana NH Tran, Andy HM Leung, Devi Sunartio, Greg G Qiao, David H Solomon
AUSTRALIAN JOURNAL OF CHEMISTRY | CSIRO PUBLISHING | Published : 2013
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 th..View full abstract
We gratefully acknowledge the financial support of The Cooperative Research Centre for Polymers (CRC-P) and the helpful discussions with Dr Ian Dagley from CRC-P.