Speaker
Ms
Nopparat Thavornsin
(Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.)
Description
Two different series of conjugated polymer, poly(m-phenyleneethynylenes) (m-PPEs) containing different amounts of salicylideneaniline moieties (50% and 100%) have been synthesized via a post-functionalization of aniline group on m-PPEs backbone. PPEs are successfully prepared in excellent yield (90-99%) and spectroscopically characterized the structure by $^1$H, $^{13}$C NMR and FTIR exhibited signals that reasonably correlate with the desired polymer. The resulting polymers displayed weak orange emission at 560 nm and undergo remarkable turn-on bright blue fluorescent emission at 450 nm response to Fe$^{2+}$, Fe$^{3+}$, Al$^{3+}$ and Cr$^{3+}$ without any change with other cations.
Primary author
Ms
Nopparat Thavornsin
(Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.)
Co-author
Mr
Mongkol Sukwattanasinitt
(Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.)
