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Adsorption and micellisation of partially- and fully-fluorinated surfactants

Abstract:

Effects of chemical structure on adsorption and aggregation behaviour have been investigated for sodium perfluorononanoate (C8F17COO- Na+ or Na PFN) and 9-H perfluorononanoate (H-C8F16COO- Na+ or H Na PFN). Replacing the terminal F for H in this way gives rise to a permanent dipole moment at the hydrophobic tip of the chain. The critical micelle concentrations, determined by surface tension and electrical conductivity, were 10 and 40 mmol dm-3 for the Na PFN and H Na PFN, respectively. Tensio...

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
Journal:
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume:
156
Issue:
1-3
Pages:
33-48
Publication date:
1999-10-15
DOI:
ISSN:
0927-7757
Source identifiers:
121654
Language:
English
Keywords:
Pubs id:
pubs:121654
UUID:
uuid:d0c4256b-2a9f-43f0-a122-934cccc318d9
Local pid:
pubs:121654
Deposit date:
2012-12-19

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