Imaging Science and Photochemistry ›› 2013, Vol. 31 ›› Issue (3): 208-214.DOI: 10.7517/j.jssn.1674-0475.2013.03.005

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The Preparation and Polarizing Property Studying in Modified Direct Gray D-Cu2+ Metal Complexes

FU Hua, HAN Ai-xia   

  1. The School of Chemical Engineering, Qinghai University, Xining 810016, Qinghai, P.R.China
  • Received:2012-10-17 Revised:2012-12-14 Online:2013-05-15 Published:2013-05-15

Abstract: The new compounds HDP were obtained by chemical reaction and then eomplexed with Cu2+. The intermediate HDP-Z was synthesized by diazotization and coupling reaction with direct gray D as raw material. And colorful polarizing films were obtained by extension, racking and desiccation of PVA film after dyed by HDP and HDP-Z. The polarizing property in near ultraviolet region and visible spectra were measured with UV spectrophotometer.The results showed that the polarizing property of the colorful polarizing films with HDP and HDP-Z was improved about 50 nm in degree of polarizing >60% ranged 450—700 nm; the polarizing property of the colorful polarizing films with Cu2+ increased about 5%, and had polarizing in near ultraviolet region.

Key words: modified direct gray D, Cu2+, complex, polarity, polarizing range

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