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

Journal article

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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Authors: An, S; Thomas, R; Baines, F; Billingham, N; Armes, S

• Publication status: Published
• Journal: JOURNAL OF PHYSICAL CHEMISTRY B
• Volume: 102
• Issue: 26
• Pages: 5120-5126
• Publication date: 1998-06-25
• DOI: 10.1021/jp9809033
• EISSN: 1520-5207
• ISSN: 1089-5647
• Language: English