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煤沥青-二乙烯基苯COPNA树脂的合成及表征 被引量:8

STUDY ON THE SYNTHESIS AND PROPERTIES OF CONDENSED POLYNUCLEAR AROMATICS RESIN USING PITCH AS MONOMER AND DIVINYLBENZENE AS CROSS-LINKING AGENT
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摘要 首次以煤沥青为单体 ,二乙烯基苯为交联剂 ,在对甲苯磺酸的催化作用下合成了缩合多核芳烃(COPNA)树脂。采用傅立叶红外分析 (FT- IR)和核磁共振氢谱 (1H- NMR)研究其反应机理 ;采用扫描电镜 (SEM)对反应过程中生成的中间相小球的尺寸变化分析 COPNA树脂的生成情况 ;采用热重 (TGA)研究 COPNA树脂的热稳定性。研究表明 ,该反应为阳离子型聚合反应 ,所获得的 COPNA树脂具有较高的耐热性 ,在氮气中的热降解起始温度为 4 10℃。 Under the action of an acid catalyst, the condensed polynuclear aromatic (COPNA) resin was synthesized using coal tar pitch as monomer and divinylbenzene (DVB) as a cross-linking agent for the first time in this paper. The reaction mechanism was studied with FT-IR spectrum and 1H-NMR spectrum. Mesophase microbead was used to analyze the growth of COPNA resin with SEM during reaction, and the thermostability of COPNA resin was analyzed with TGA. It is indicated that the reaction is a positive ion-typed condensation polymerization catalyzed by acid. Besides, the COPNA resin has high heat-resistance, and the thermal decomposition temperature of the resin is 410 ℃.
出处 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2003年第1期53-56,共4页 Polymer Materials Science & Engineering
基金 航空基金资助项目 ( 96G5 3 0 93)
关键词 煤沥青-二乙烯基苯 COPNA树脂 合成 表征 反应机理 中间相小球 热稳定性 coal tar pitch divinylbenzene COPNA resin reaction mechanism mesophase microbead thermostability
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参考文献2

  • 1LITie-hu YANGZheng ZHENGXiu-lin.西北工业大学学报 (Journal of Northwestern Polytechnical University),1992,(4):482-485.
  • 2唐恢同.有机化合物的光谱分析 (Youji Huahewu De Guangpu Fengxi)[M].北京:北京大学出版社 (Beijing: Beijing University Press),1992.54.

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