Spectroscopy and Spectral Analysis, Volume. 33, Issue 2, 320(2013)
Synthsis and Photoluminescence Properties of Low-Tg Photorefractive Polymers of Double Founction
A group of low-Tg photorefractive polymers of double function with carbazole and p-nitrodiazencarbazole called P-2, P-3 and P-4 were synthesized by means of different proportional diazonium salts being diazo-coupled with the poly [bis(6-carbazolhexyloxy)] phosphazene(P-1). P-2, P-3 and P-4 were characterized by 31P NMR, 1H NMR, IR, UV-Vis, GPC, TG and DSC. The result showed that P-2, P-3 and P-4 have good heat stability (Td≈300 ℃) and a lower glass transition temperature (Tg≈30~40 ℃). Their fluorescence properties were studied by photoluminescence and the result showed that P-1 has a stronger fluorescence properties and fluorescence intensity. P-2, P-3 and P-4 have varying degrees of quenching after nitro joining. The fluorescence properties were related with numbers of carbazole and nitro and their molecular space structure.
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QU Yu-feng, FANG Yu, XU Liang, SUN Lian-lai, YANG Rui-zhuang, LUO Xuan, CAO Lin-hong, LIU Hong-jie, HUANG Jin, JIANG Xiao-dong. Synthsis and Photoluminescence Properties of Low-Tg Photorefractive Polymers of Double Founction[J]. Spectroscopy and Spectral Analysis, 2013, 33(2): 320
Received: Jun. 13, 2012
Accepted: --
Published Online: Mar. 27, 2013
The Author Email: Yu-feng QU (ququfeiyan@163.com)