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- W2331295986 abstract "Methyl sulfide terminated trans-oligo(p-phenylenevinylene) derivatives (OPVn, n is the number of phenyl rings) were synthesized, and reversible sol–gel transition was observed in a variety of organic solvents. Investigations with UV–vis, fluorescence, and 1H NMR spectroscopy revealed that aromatic π–π stacking and van der Waals forces were important in the formation of the gels, with the former being the main driving force for sol–gel transition. The π-conjugation length showed a key influence on self-assembly and gelation property: the gel-to-sol transition temperature (Tgel) increased with π-conjugation length. The gels of OPV4–7 can self-assemble into one-dimensional fibers with different sizes and shapes, depending on their π-conjugation length. On the basis of X-ray diffraction measurements and spectroscopic data, a self-assembly model was proposed. Our observation may be useful for designing functional π-gelators based on π–π stacking." @default.
- W2331295986 created "2016-06-24" @default.
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- W2331295986 date "2014-04-16" @default.
- W2331295986 modified "2023-09-28" @default.
- W2331295986 title "Reversible Sol–Gel Transition of Oligo(<i>p</i>-phenylenevinylene)s by π–π Stacking and Dissociation" @default.
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- W2331295986 doi "https://doi.org/10.1021/jp412554w" @default.
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