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The pH-induced swelling and collapse of a polybase brush synthesized by atom transfer radical polymerization

Abstract:

We have used neutron reflectometry to characterize the swelling behaviour of brushes of poly[2-(diethyl amino)ethyl methacrylate], a polybase, as a function of pH. The brushes, synthesized by the "grafting from" method of atom transfer radical polymerization, were observed to approximately double their thickness in low pH solutions, although the pKa is shifted to a lower pH than in dilute solution. The composition-depth profile obtained from the reflectometry experiments for the swollen brush...

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Publisher copy:
10.1039/b611847j

Authors


Geoghegan, M More by this author
Ruiz-Pérez, L More by this author
Parnell, AJ More by this author
Martin, SJ More by this author
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Journal:
Soft Matter
Volume:
2
Issue:
12
Pages:
1076-1080
Publication date:
2006
DOI:
EISSN:
1744-6848
ISSN:
1744-683X
URN:
uuid:990e1266-02ee-456f-9813-ba9f02be47a7
Source identifiers:
160325
Local pid:
pubs:160325
Language:
English

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