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Photoluminescent Color and Polarized Light Emission Tuning of Fluorene Derivatives Using a Photoreactive H‐Bonded Liquid Crystalline Polymer
Author(s) -
Kawatsuki Nobuhiro,
Ando Ryoichi,
Ishida Ryosuke,
Kondo Mizuho,
Minami Yuta
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000183
Subject(s) - fluorene , photoluminescence , cinnamic acid , pyridine , photochemistry , polymer , pendant group , side chain , materials science , polymer chemistry , chemistry , organic chemistry , optoelectronics
Three fluorene (FL) derivatives with pyridine end groups were synthesized to control the photoluminescence (PL) wavelength and polarized light emission using a photoreactive H‐bonded polymer containing cinnamic acid side groups (P6CAM). The FL derivatives, which possessed pyridine end groups, formed H‐bonds with cinnamic acid, and changed the PL behavior of the derivatives. The controllability λ max of the PL depended on the position of the N‐atom at the pyridine end group and the degree of the photoreaction of the P6CAM. For F1, λ max of the PL was tuned from 470 to 518 nm. Employing P6CAM as the photoalignment layer to reorient the cinnamic acid side groups realized polarized PL up to PL || /PL ⟂ = 3.9. Furthermore, photopatterning of the PL color and the direction of the polarized light emission using patterned P6CAM films were demonstrated.