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X-RAY AND NEUTRON REFLECTIVITY FROM SPREAD MONOLAYERS

Abstract:

X-ray and neutron reflectivity measurements on spread films of docosanoic acid on an aqueous subphase have been used to deduce structural information. At surface pressures of 30-40 mN m-1 the molecules are perpendicular to the subphase surface. If the subphase has pH greater than 5 and contains cadmium ions (about 2.5 × 10-4M) the ions bind tightly to the acid head groups and are not in a diffuse layer. At low surface pressures (film area twice the "close-packed" area) the film breaks up into...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Role:
Author
Journal:
THIN SOLID FILMS
Volume:
159
Issue:
1-2
Pages:
43-52
Publication date:
1988-05-05
DOI:
ISSN:
0040-6090
URN:
uuid:a2fac658-27b9-4896-bc0d-6d840852a940
Source identifiers:
121746
Local pid:
pubs:121746
Language:
English

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