《Synthesis and optical properties of triphenylene-based donor-donor and donor-acceptor conjugated polymers: a comparative study》 was written by Li, Yong; Nguyen, Dung D.; Shetye, Kuldeep; Peng, Zhonghua. Recommanded Product: 3-Methoxyphenylboronic acidThis research focused ontriphenylene based donor acceptor conjugated polymer synthesis optical property. The article conveys some information:
Two new conjugated polymers (P1 and P2), containing a bithiophene donor unit coupled with either a triphenylene donor unit or an imide-functionalized triphenylene acceptor unit in the backbone, have been synthesized, structurally characterized, and comparatively studied by using 1H NMR, FTIR, gel permeation chromatog., differential scanning calorimetry, cyclic voltammetry, UV-visible absorption, and fluorescence spectroscopy. Both polymers are amorphous in nature and thermally stable up to 450°. The inclusion of the imide functionalization in the triphenylene unit significantly lowered the LUMO energy level and the bandgap of the donor-acceptor polymer P2 over the donor-donor polymer P1. P1 and P2 show very different optical properties in hexane and other solvents. P1 shows a broad emission in hexane but vibronically structured emissions in other solvents; in contrast, P2 exhibits a vibronically resolved emission in hexane, while exhibiting red shifted, broad, and featureless emissions in other solvents. P1 takes a random coil conformation in good solvents like p-xylene, benzene, toluene, anisole, chloroform, THF, and o-dichlorobenzene, whereas in hexane, it may adopt a helical folding conformation. P2, on the other hand, adopts a random coil conformation in hexane but possibly the helical folding conformation in other good solvents. The opposite conformations of the two polymers may be responsible for their opposite solvent-dependent fluorescence properties. In the experiment, the researchers used 3-Methoxyphenylboronic acid(cas: 10365-98-7Recommanded Product: 3-Methoxyphenylboronic acid)
3-Methoxyphenylboronic acid(cas: 10365-98-7) belongs to boronic acids. Boronic acids are mild Lewis acids which are generally stable and easy to handle, making them important to organic synthesis.Recommanded Product: 3-Methoxyphenylboronic acid
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