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Neutron reflectivity of an adsorbed water-soluble block copolymer at the air/water interface: The effects of pH and ionic strength

Abstract:

We describe the effects of pH and added electrolyte on the structure of layers of poly(2-(dimethylamino)-ethyl methacrylate-block-methyl methacrylate) copolymer (poly(DMAEMA-b-MMA)) (70 mol % DMAEMA, Mn = 10 000) adsorbed at the air/water interface. Previously, we had shown by means of neutron reflection measurements that 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 cross ...

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Publication status:
Published

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Publisher copy:
10.1021/jp9809033

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:
26
Pages:
5120-5126
Publication date:
1998-06-25
DOI:
EISSN:
1520-5207
ISSN:
1089-5647
URN:
uuid:738c2a66-4d05-4bf6-87c3-2283977b2ff7
Source identifiers:
36559
Local pid:
pubs:36559
Language:
English

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