Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 17, Issue 21, Pages 5989-5997Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201002709
Keywords
electrochemistry; imprinting; nitroaromatic compounds; polymers
Categories
Funding
- National Natural Science Foundation of China [20675032]
- program for New Century Excellent Talents in University [NCET-07-0293]
- Science & Technology Commission of Shanghai Municipality [10JC1404000]
- Fundamental Research Funds for the Central Universities
Ask authors/readers for more resources
This paper reports a monomer strategy for imprinting of 1,3-dinitrobenzene (DNB) molecules at the surface of conductive functional polyaniline nanofibers (PANI) for the first time. It has been demonstrated that the vinyl functional monomer layer on the PANI surface can not only direct the selective occurrence of imprinting polymerization, but can also drive DNB templates into the polymer through charge-transfer complexing interactions between DNB and functionalized PANI. These two basic processes lead to the formation of DNB-imprinted polymers at the surface of polyaniline nanofibers. The capacity to uptake DNB shows that selectivity coefficient in the nanofibers polymers is nearly three times as high as that of traditional imprinted materials and the nanofibers polymers also possess high selectivity toward DNB in comparison to similar nitroaromatic compounds. A linear response of DNB concentration between 2.20 x 10(-8) and 3.08 x 10(-6) M was exhibited with a detection limit of 7.33 x 10(-9) M (S/N = 3). These results reported here could form the basis of a new strategy for preparing various polymer-coating layers on polyaniline supports and the molecular imprinting techniques discussed could also find applications in the fields of separation, trace detection, and environmental monitoring.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available