Imaging Science and Photochemistry ›› 2001, Vol. 19 ›› Issue (3): 185-192.DOI: 10.7517/j.issn.1674-0475.2001.03.185

Previous Articles     Next Articles

SYNTHESIS AND PHOTOSTABILITY OF CYANINE AND MEROCYANINE DYES SOLUTION

YANG Song-jie1, MENG Fan-shun1, CHEN Kong-chang1, TIAN He1, WANG Wen-wei2   

  1. 1. Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, P. R. China;
    2. Provonce Enterprise Co., Ltd., Taipei
  • Received:2000-10-11 Revised:2000-11-07 Online:2001-08-20 Published:2001-08-20

Abstract: The photodegradation kinetics of cyanine dyes and merocyanine dyes were studied by UV-Vis absorption spectroscopy. The results show that the rate of the photofading reactions of the dyes follows quasi-first-order or zero-order kinetics in acetonitrile. Those cyanine dyes holding a positive charge have relative good photostability comparing with merocyanines.

Key words: cyanine dyes, photostability, merocyanine dyes, photodegradation

CLC Number: