- Near UV-vis LED-excitable two-branched sensitizers for cationic, radical, and thiol-ene photopolymerizations
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Two novel branched sensitizers bearing biphenyl or fluorenyl groups as the linking skeleton and triphenylamine-stilbene-thiomethyl benzonitrile as peripheral branches were designed. Strong absorption of light in the UV-vis range (λmax = 389-397 nm, εmax = 60,200-90,300 M-1 cm-1) matched the emission of new light sources, i.e., UV-vis light-emitting diodes at 365-450 nm. The reactive species produced from the photoinitiating systems based on these chromophores themselves or combined with an iodonium salt, N-vinylcarbazole, or an amine were highly efficient for versatile photopolymerizations (radical, cationic, and thiol-ene polymerizations) upon soft exposure conditions (365-450 nm light-emitting diodes). The UV-vis spectra, theoretical calculation of molecular orbitals, electrochemistry, and fluorescence quenching measurements were studied to reveal the photochemical mechanism.
- Fang, Bingqing,Jin, Ming,Wu, Xingyu,Zhang, Yuan,Wan, Decheng
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- Vinyl-bridged crosslinking-type micromolecule hole transport material, preparing method and application thereof and preparing technology of crosslinking hole transport layer
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The invention discloses a preparing method of a vinyl-bridged crosslinking-type micromolecule hole transport material and structural features of the vinyl-bridged crosslinking-type micromolecule holetransport material. The invention further discloses appl
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Paragraph 0050; 0052; 0054
(2019/10/01)
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