نتایج جستجو برای: phthalonitrile

تعداد نتایج: 124  

2007
G. P. Cao W. J. Chen J. J. Wei W. T. Li X. B. Liu

The novel bisphthalonitrile containing benzoxazine (BPNBZ) has been synthesized using bisphenol-A, 4-aminophenoxylphthalonitrile and paraformaldehyde. The structure of the monomer was supported by FTIR spectroscopy, 1H-NMR, and 13C-NMR spectra, which have exhibited that the reactive benzoxazine ring and cyano groups exist in molecular structure of BPNBZ. The cure reaction of BPNBZ was monitored...

2017
Renbo Wei Jialing Wang Hongxing Zhang Weihua Han Xiaobo Liu

We report the fabrication and improved properties of crosslinked polyarylene ether nitrile (CPEN) interpenetrating with a zinc ion bridged graphene sheet (GS) and carbon nanotube (CNT) network (GS-Zn-CNT) (CPEN/GS-Zn-CNT). Graphene oxide (GO) and acidulated CNT were firstly prepared and then coordinated with zinc ions to form the zinc ion bridged GO and CNT network (GO-Zn-CNT). The mass ratio o...

Journal: :The journal of physical chemistry. B 2015
Marius Koch Giuseppe Licari Eric Vauthey

The dynamics of a moderately exergonic photoinduced charge separation has been investigated by ultrafast time-resolved infrared absorption with the dimethylanthracene/phthalonitrile donor/acceptor pair in solvents covering a broad range of polarity. A distinct spectral signature of an exciplex could be identified in the -C≡N stretching region. On the basis of quantum chemistry calculations, the...

2017
Kirill S. Belsky Artem V. Sulimov Boris A. Bulgakov Alexandr V. Babkin Alexey V. Kepman

Hydrolysis data for Bis(3-(3,4-dicyanophenoxy)phenyl) phenyl phosphate and Bis(3-(3,4-dicyanophenoxy)phenyl) phenylphosphonate under pH 4, 7 and 10 are presented. Conversion/time plots collected by HPLC analysis, typical chromatograms and NMR spectra of the reactions products are given. Pseudo-first order rate constants are determined for both substrates at 25, 50 and 80 °C. Activation paramete...

Journal: : 2022

Abstract The synthesis of poly(ε-caprolactone) (PCL) tetra-arm star polymer was carried out using “click” chemistry and ring-opening polymerization techniques. For this purpose, azido (PCL-N 3 ) acquired ε-caprolactone 2-[2-(2-azidoethoxy)ethoxy]ethanol (N ol). N ol obtained sodium azide 2-[2-(2-chloroethoxy)ethoxy]ethanol. 4-(prop-2-ynyloxy)-phthalonitrile by 4-nitrophthalonitrile propargyl al...

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