Philip, John ; Gnana Prakash, G. ; Jaykumar, T. ; Kalyanasundaram, P. ; Baldev Raj, (2002) Stretching and collapse of neutral polymer layers under association with ionic surfactants Physical Review Letters, 89 (26). 268301_1-268301_4. ISSN 0031-9007
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Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.89.268...
Related URL: http://dx.doi.org/10.1103/PhysRevLett.89.268301
Abstract
We provide experimental evidence for stretching and collapse of neutral polymer layers, already adsorbed at an oil-in-water interface, due to its interaction with surfactants. Upon stretching, the first interaction length (2L0) follows a power law dependence on surfactant concentration (∝Csx, where x ≈ 0.5 for cationic surfactants) and collapses in the presence of salt, as a relatively weak power law (Cs−y, where y=0.17), in good agreement with brush length decay for polyelectrolyte brushes.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 40416 |
| Deposited On: | 24 May 2011 05:35 |
| Last Modified: | 24 May 2011 05:35 |
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