期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 47, 期 3, 页码 746-753出版社
WILEY
DOI: 10.1002/pola.23190
关键词
cationic polypyrrole; DNA detection; ionic liquids; microemulsion polymerization; nanoparticles
资金
- National Natural Science Foundation of China [20774063, 20874071]
- New Century Excellent Talents in University [NCET-07-0593]
- Fok Ying Tung Education Foundation [114:022]
A cationic pyrrole derivative, N-(4-butyl-(1-methylimidazole)) pyrrole bromide (Py-Br) bearing an imidazolium-type ionic liquid moiety was synthesized. Micro-emulsion polymerization of Py-Br in water/oil microemulsions produced poly(N-(4-butyl-(1-methyhmidazole)) pyrrole bromide) (PPy-Br) nanoparticles. The bromide anion of the resultant PPy-Br nanoparticles was exchanged in water with different anions, including BF4- and PF6- to produce new nanoparticles bearing different counteranions. The results of thermal analysis indicate that the thermal stability of cationic PPy nanoparticles strongly depends on the nature of counteranion. As an application, water-soluble Ppy-Br with fine fluorescence property was used as a new sensor for DNA detection. (C) 2008 Wiley Periodicals, Inc. J Polym Sci Pan A: Polym Chem 47: 746-753, 2009
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