Bolis, Serena published the artcileUltrafast study of inter- and intrachain energy transfer in a core-polymer, Formula: C20H28B2O4S2, the publication is Journal of Polymer Science, Part B: Polymer Physics (2018), 56(13), 965-969, database is CAplus.
Interchain interactions can play a pos. role in reaching amplified spontaneous emission in an interesting core-polymer system where the donor (side chains) and the acceptor (core) are chem. linked together. Different degree of interchain interactions modifies the photophys. characteristics of the polymer. By means of transient absorption spectroscopy we show that the stimulated emission from the core decreases passing from solid state to concentrated solution and it is almost absent in the diluted solution The conformational rearrangements of the core-polymer chain in solution limits the efficiency of the intrachain Foerster energy transfer mechanism. The free chain rotations decrease the exciton hopping along the conjugated chains, the ratio between donor and acceptor moieties in the polymer, and change the relative orientation of the transition dipoles of the donor and acceptor causing a strong decrease of energy transfer efficiency and subsequently of the gain. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018.
Journal of Polymer Science, Part B: Polymer Physics published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, Formula: C20H28B2O4S2.
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