Preparation and Optical Properties of Azo Polymer Containing Benzothiazole Group

Abstract:

Article Preview

A novel chromophore molecule (HEPNBT) was synthesized by diazo-coupling reaction. The polyurethane (HEPU) was obtained from chromophore molecule HEPNBT, NJ-220 and isophorone diisocyanate (IPDI). The structures of HEPNBT and HEPU were characterized using the Fourier transform infrared and UV-visible spectroscopy. The refractive index (n) of HEPU was determined at different temperature and wavelength (532nm, 650nm and 850nm) using attenuated total reflection (ATR) technique, and the thermo-optic coefficient (dn/dT) was -4.149×10-4 °C-1(532nm), -7.954×10-4°C-1 (650nm) and -6.71Superscript text4×10-4°C-1 (850nm), resSuperscript textpectively. Using the CCD digital imaging devices, transmission loss of HEPU was measured and the value was 0.238 dB/cm. The results show that the obtained HEPU has a certain significance to the development of new types of digital thermo-optic switch material.

Info:

Periodical:

Edited by:

Yuan Ming Huang

Pages:

11-14

Citation:

G. Y. Wu et al., "Preparation and Optical Properties of Azo Polymer Containing Benzothiazole Group", Key Engineering Materials, Vol. 538, pp. 11-14, 2013

Online since:

January 2013

Export:

Price:

$38.00

[1] E. Gubbelmans, T. Verbiest, M. Van Beylen, A. Persoons and C. Samyn, Polymer, Vol. 43 (2002), p.1581.

DOI: https://doi.org/10.1016/s0032-3861(01)00678-4

[2] F. X. Qiu, P. P. Li and D. Y. Yang, eXPRESS Polymer Letters, Vol. 1(2007), p.150.

[3] P. Karamanis and G. Maroulis, Chemical Physics Letters, Vol. 376 (2003), p.403.

[4] K. Mandal, T. Kar, F. Nandi andS. P. Bhattacharyya, Chemical Physics Letters, Vol. 376(2003), p.116.

[5] G. Gorachand, Journal of Non-Crystalline Solids, Vol. 189(1995), p.191.

[6] N. Farhadyar, A. Rahimi and A. E. Langroudi, Iranian Polymer Journal, Vol. 14(2005), p.155.

[7] R.C. Kamikawachi, I. Abe, A. S. Paterno, H. J. Kalinowski, M. Muller, J. L. Pinto and J. L. Fabris, Optics Communications, Vol. 281(2008), p.621.

DOI: https://doi.org/10.1016/j.optcom.2007.10.023