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Neutron reflectivity of an adsorbed water-soluble block copolymer: A surface transition to micelle-like aggregates at the air/water interface

Abstract:

We describe neutron reflectivity measurements on layers of poly(2-(dimethylamino)ethyl methacrylate-block-methyl methacrylate) copolymer (poly(DMAEMA-b-MMA)) (70 mol % DMAEMA, Mn = 10k) adsorbed at the air/water interface. Measurements of the partially deuterated copolymer on null reflecting water give the adsorption isotherm and show that there is a surface phase transition from a layer about 20 Å thick to one about 40 Å thick. The concentration of polymer at which the phase transition occur...

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Publication status:
Published

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Publisher copy:
10.1021/jp971277x

Authors


Thomas, RK More by this author
Baines, FL More by this author
Billingham, NC More by this author
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Journal:
JOURNAL OF PHYSICAL CHEMISTRY B
Volume:
102
Issue:
2
Pages:
387-393
Publication date:
1998-01-08
DOI:
EISSN:
1520-5207
ISSN:
1089-5647
URN:
uuid:00b1e44e-7b2c-4e61-a2fd-27d3c35fdc40
Source identifiers:
36337
Local pid:
pubs:36337
Language:
English

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