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Citation: Ruan Xiangquan, Dong Yi, Zheng Jiaming. synthesis and Characterization of Triarylmethane Resin[J]. Chinese Journal of Applied Chemistry, ;1997, 14(3): 74-77. shu

synthesis and Characterization of Triarylmethane Resin

1.
Department of Chemical Engineering, Tianjin University, Tianjin 300072

Received Date: 28 October 1996
Available Online: 28 March 1997
Fund Project:

The B stage codensed polynuclear aromatic resin (B-COPNA) was synthesized from pyrene and benzaldehyde in the presence of p-toluenesulfonic acid. Its structure was characterized by IR, ¹H NMR and ¹³ C NMR measurements. Results showed that the polymer possesses triarylmethane structure. On heating under inert gas at 500℃, 600℃ and 800℃ COPNA resin dehydrogenated and converted to an insoluble and infusible one, which, as ESR results shows, exhibits an obvious paramagnetic property and very high concentration of stable free radicals:2.28×10²² spins/g.
- condensed polynuclear aromatic resin,
- triarylmethane resin,
- synthesis,
- characterization,
- ferromagnetic property,
- stable free-radicals
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