Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 18999-19006 |
| Number of pages | 8 |
| Journal | Journal of Materials Chemistry |
| Volume | 22 |
| Issue number | 36 |
| DOIs | |
| Publication status | Published - 28 Sep 2012 |
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Coil-by-coil assembly of poly[acrylamide-co-3-(methacryl-amido)- phenylboronic acid] with polydiallyldimethyl-ammonium to give alizarin red S responsive films. / Shariki, S.; Cox, O.T.L.; Tickell, D.A.; James, T.D.; Dale, S.E.C.; Marken, F.; Pereira Morais, M.P.; Van Den Elsen, J.M.H.; Bending, S.
In: Journal of Materials Chemistry, Vol. 22, No. 36, 28.09.2012, p. 18999-19006.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Coil-by-coil assembly of poly[acrylamide-co-3-(methacryl-amido)- phenylboronic acid] with polydiallyldimethyl-ammonium to give alizarin red S responsive films
AU - Shariki, S.
AU - Cox, O.T.L.
AU - Tickell, D.A.
AU - James, T.D.
AU - Dale, S.E.C.
AU - Marken, F.
AU - Pereira Morais, M.P.
AU - Van Den Elsen, J.M.H.
AU - Bending, S.
PY - 2012/9/28
Y1 - 2012/9/28
N2 - An electrolyte-stable polymer composite sensor film based on 2.4% boronic acid substituted polyacrylamide (poly[acrylamide-co-3-(methacrylamido)- phenylboronic acid] or P(A-MPBA)) and polydiallyl-dimethyl-ammonium chloride (or PDDACl) is obtained in a coil-by-coil deposition procedure. Based on AFM evidence, the resulting coil aggregate deposits show ca. 5-10 nm diameter and the average film thickness increases with ca. 1 nm per deposition cycle consistent approximately with the solution coil diameter. In electrochemical experiments alizarin red S is employed as a boronic acid indicating redox probe with a Langmuirian binding constant of ca. K = 4 × 10 M and two distinct redox responses tentatively assigned here to two isomeric forms of the complex in oxidized and reduced state. Inter- and intra-coil electron transfer and electron hopping occurs during alizarin red S reduction and back-oxidation. Both smooth and mesoporous ITO substrates are employed.
AB - An electrolyte-stable polymer composite sensor film based on 2.4% boronic acid substituted polyacrylamide (poly[acrylamide-co-3-(methacrylamido)- phenylboronic acid] or P(A-MPBA)) and polydiallyl-dimethyl-ammonium chloride (or PDDACl) is obtained in a coil-by-coil deposition procedure. Based on AFM evidence, the resulting coil aggregate deposits show ca. 5-10 nm diameter and the average film thickness increases with ca. 1 nm per deposition cycle consistent approximately with the solution coil diameter. In electrochemical experiments alizarin red S is employed as a boronic acid indicating redox probe with a Langmuirian binding constant of ca. K = 4 × 10 M and two distinct redox responses tentatively assigned here to two isomeric forms of the complex in oxidized and reduced state. Inter- and intra-coil electron transfer and electron hopping occurs during alizarin red S reduction and back-oxidation. Both smooth and mesoporous ITO substrates are employed.
UR - http://www.scopus.com/inward/record.url?scp=84865217830&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1039/c2jm31089a
U2 - 10.1039/c2jm31089a
DO - 10.1039/c2jm31089a
M3 - Article
VL - 22
SP - 18999
EP - 19006
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
SN - 0959-9428
IS - 36
ER -