引用本文:
阮湘泉, 董奕, 郑嘉明. 三芳基甲烷树脂的合成与表征[J]. 应用化学,
1997, 14(3): 74-77.
Citation: Ruan Xiangquan, Dong Yi, Zheng Jiaming. synthesis and Characterization of Triarylmethane Resin[J]. Chinese Journal of Applied Chemistry, 1997, 14(3): 74-77.
Citation: Ruan Xiangquan, Dong Yi, Zheng Jiaming. synthesis and Characterization of Triarylmethane Resin[J]. Chinese Journal of Applied Chemistry, 1997, 14(3): 74-77.
三芳基甲烷树脂的合成与表征
English
synthesis and Characterization of Triarylmethane Resin
Abstract:
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.
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