Recommanded Product: 4,4′-Dimethyl-2,2′-bipyridineIn 2021 ,《Reversible Stimuli-Dependent Aggregation-Induced Emission from a “”Nonfluorescent”” Amphiphilic PVDF Graft Copolymer》 was published in Langmuir. The article was written by Pakhira, Mahuya; Chatterjee, Dhruba P.; Mallick, Dibyendu; Ghosh, Radhakanta; Nandi, Arun K.. The article contains the following contents:
A poly(vinylidine fluoride) graft random copolymer of t-Bu aminoethyl methacrylate (tBAEMA) and oligo(ethylene glycol) Me ether methacrylate (OEGMA, Mn = 300) [PVDF-g-P(tBAEMA-ran-OEGMA), PVBO] is synthesized by atom transfer radical polymerization (ATRP), and PVBO is fractionated to get a highly water-soluble fraction (PVBO-1) showing a reversible on/off fluorescence behavior with gradual increase and decrease in pH, resp., achieving a maximum quantum yield of 0.18 at pH = 12. PVBO-1 dissolved in water shows large multimicellar aggregates (MMcA), but at pH 12, crumbling of larger aggregates to much smaller micelles occurs, forming nonconjugated polymer dots (NCPDs), as supported by transmission electron microscopy and dynamic light scattering study. The reversible fluorescence on/off behavior also occurs with the decrease and increase of temperature Theor. study indicates that, at high pH, most of the amino groups become neutral and exhibit a strong tendency to form aggregates from crowding of a large number of carbonyl and amine groups, minimizing the HOMO-LUMO gap, showing an absorption peak at the visible region, and generating aggregation-induced emission.4,4′-Dimethyl-2,2′-bipyridine(cas: 1134-35-6Recommanded Product: 4,4′-Dimethyl-2,2′-bipyridine) was used in this study.
4,4′-Dimethyl-2,2′-bipyridine(cas: 1134-35-6) is used in the synthesis of a series of o-phenanthroline-substituted ruthenium(II) complexes.Recommanded Product: 4,4′-Dimethyl-2,2′-bipyridine Furthermore, 4,4′-Dimethyl-2,2′-bipyridine is used as a chemical Intermediate. It can be used for the determination of ferrous and cyanide compounds.