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Neutron reflectivity of adsorbed water-soluble block copolymers at the air/water interface: The effects of composition and molecular weight

Abstract:

We have used neutron reflection to follow the effects of composition and molecular weight on the structure of layers of poly(2-(dimethylamino)ethyl methacrylate-block-methyl methacrylate copolymer (poly(DMAEMA-b-MMA)) adsorbed at the air/water interface. We had previously shown that for a 70% DMAEMA copolymer of Mn about 10K at a pH of 7.5 there is a surface phase transition from a layer about 20 Å thick to one about 40 Å thick and that the adsorbed layer at the higher concentration has a lay...

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Publication status:
Published

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Publisher copy:
10.1021/ma980548e

Authors


Thomas, RK More by this author
Baines, FL More by this author
Billingham, NC More by this author
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Journal:
MACROMOLECULES
Volume:
31
Issue:
22
Pages:
7877-7885
Publication date:
1998-11-03
DOI:
EISSN:
1520-5835
ISSN:
0024-9297
URN:
uuid:8d6aee07-3b0e-49c1-bba7-931a282992c1
Source identifiers:
36813
Local pid:
pubs:36813
Language:
English

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