Photophysical Switching Properties of Spironaphthoxazine-poly(styrene-sulfonic acid) Polyion Complex
摘要:
This research focuses on the preparation of polyion complex having spironaphthoxazine and their photochromic behaviors including absorbance and fluorescence switching. The polyion complex was prepared by the ion complex formation between spironaphthoxazine 3 (cationic monomer) and poly(styrene-sulfonic acid) (anionic polymer). Spironaphthoxazine group showed reversible photoisomerization in this polyion complex upon UV irradiation. It reversibly changed the fluorescent intensity by alternative irradiation with ultraviolet and visible light. The photoinduced ionic conductivity in polyion complex solution gradually increased upon UV irradiation and subsequently decreased in the dark.
Self-Assembly Fabrication Using Diazo Coupling Dye and Spiroxazine
作者:Sung Hoon Kim、Young Min Park、Chang Soo Lee、Young A Son
DOI:10.1080/15421400802329418
日期:2008.9.30
diazonium resin, J-acid, photochromic spiroxazine and poly(sodium-4-styrene)sulfonate (PSS) were alternately fabricated on the glass slide, The fabrication of the multi-layer films was characterized by UV-vis spectroscopy and Atomic Force Microscopy (AFM). During the first bilayer fabrication, azo dye was simultaneously synthesized by diazocoupling reaction between diazonium resin and J-acid coupler
Photophysical Switching Properties of Spironaphthoxazine-poly(styrene-sulfonic acid) Polyion Complex
作者:Young-A Son、Seon-Yeong Gwon、Sung-Hoon Kim
DOI:10.1080/15421400903584291
日期:2010.4.13
This research focuses on the preparation of polyion complex having spironaphthoxazine and their photochromic behaviors including absorbance and fluorescence switching. The polyion complex was prepared by the ion complex formation between spironaphthoxazine 3 (cationic monomer) and poly(styrene-sulfonic acid) (anionic polymer). Spironaphthoxazine group showed reversible photoisomerization in this polyion complex upon UV irradiation. It reversibly changed the fluorescent intensity by alternative irradiation with ultraviolet and visible light. The photoinduced ionic conductivity in polyion complex solution gradually increased upon UV irradiation and subsequently decreased in the dark.
Spiropyrans and spirooxazines 9. Photochromism of novel cationic spirooxazines
作者:A. V. Metelitsa、N. A. Voloshin、S. O. Besuglyi、E. V. Solov’eva、K. E. Shepelenko、Yu. R. Abubikerova、V. I. Minkin
DOI:10.1007/s11172-013-0073-6
日期:2013.2
spirooxazinoquinolines, their cationic derivatives, and cationic spirooxazine containing pyridinium cation in the aliphatic side chain of the oxazine moiety of the molecule were synthesized. Quaternization of the quinoline fragment leads to a substantial increase in the thermal stability of the merocyanine isomers of cationic spirooxazines and a decrease in the efficiency of photocoloration. Pyridinium