HPLC of Formula: 140-66-9《Supramolecular confinement and photoluminescence enhancements of a conjugated polymer by hydrogen bonding in solid films》 was published in 2022. The authors were Liu, Yen-Hui;Huang, Cheng-Chung;Cheng, Chih-Chia;Yang, Arnold C.-M., and the article was included in《Materials Chemistry and Physics》. The author mentioned the following in the article:
Massive photoluminescence (PL) enhancements and blue shifts in solid films of a conjugated polymer (CP) were observed when supramol. confinement took effect under intermol. hydrogen bonding (HB) stabilized via paired diluent interactions. By blending a HB donor diluent of 4-octylphenol into poly [2-(thiophen-3-yl)-Et acetate], a CP with HB acceptor side-groups, the PL emissions and blue shift surged at a threshold diluent fraction (ϕd) corresponding to ~0.5 diluent mol. per CP monomers, attributed to mol. confinement by the hydrogen bonding. The confinement culminated, with the PL enhancements and blue shift achieving ~12 folds and ~40 nm resp., at ϕd ~1.5 diluent per monomer when almost all CP side-groups had formed supramol. bonding; thereafter it plateaued as the excess diluent precipitated into crystalline 2nd phase. It is inferred that restriction of CP motions under supramol. confinements can rigidify the backbones to lead to reduced self-trapping and enhanced PL, while at the same time the incurred modification of chain conformations disrupts conjugation lengths and gives rise to large blue shifts. To complete the study, the researchers used 4-tert-Octylphenol (cas: 140-66-9) .
4-tert-Octylphenol(cas: 140-66-9) is a common environmental pollutant showing weak estrogenic effects.HPLC of Formula: 140-66-9 It has been shown to cause harm to vertebrate male reproductive systems.
Reference:
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