Optical-limiting effect of C60 bonded poly(N-vinylcarbazole) initiated with C60Cln/CuCl/Bpy catalyst system

C60 bonded poly(N-vinylcarbazole) (PVK) has been synthesized by C60Cln (the average value of n is 20; C60/C70=85:15)/CuCl/2,2' - bipyridine (Bpy) catalyst system. The molecular distribution curve determined by gel permeation chromatography (GPC) with RI and UV dual detector and 'H-nuclear...

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Published in:Materials letters 2005-03, Vol.59 (6), p.644-647
Main Authors: Hua, Jing, Yang, Weihai, Zhu, Yunji, Guo, Zhixin, Yang, Haiqiang, Xu, Ling, Chen, Dianbao
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cited_by cdi_FETCH-LOGICAL-c197t-b59b3476e4d4c5bbbe91300439cde7355824c78aba5717d3e2d1d77c6e90a9383
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container_title Materials letters
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description C60 bonded poly(N-vinylcarbazole) (PVK) has been synthesized by C60Cln (the average value of n is 20; C60/C70=85:15)/CuCl/2,2' - bipyridine (Bpy) catalyst system. The molecular distribution curve determined by gel permeation chromatography (GPC) with RI and UV dual detector and 'H-nuclear magnetic resonance (1H-NMR) of the C60-PVK verified that the polymerization mechanism was atom transfer radical polymerization (ATRP). The optical-limiting properties of C60/C70-PVK and C655-PVK with different C60 content were measured via a nanosecond Nd:YAG pulse laser system at a wavelength of 532 nm. The experimental results demonstrated that the optical-limiting behavior of C60-PVK and C60/C70-PVK was better than that of C60Cln, C60/70Cln and approached to pristine C60. The optical-limiting performance was improved upon the addition of increasing concentrations of C60 (C60/C70) in C60-PVK (C60/C70-PVK).
doi_str_mv 10.1016/j.matlet.2004.10.059
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title Optical-limiting effect of C60 bonded poly(N-vinylcarbazole) initiated with C60Cln/CuCl/Bpy catalyst system
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