【摘要】 芘苯甲醛ＣＯＰＮＡ树脂的合成及其磁性行为的研究阮湘泉董奕郑嘉明郭崇涛（天津大学化学工程系，天津３０００７２）关键词三芳基甲烷，ＣＯＰＮＡ树脂，稳定自由基，铁磁性在有机磁体的研究中，Ｏｔａ等人曾研究了以次甲基交联的缩合多核芳香烃（ＣＯＰＮＡ）树脂经光...更多还原

【Abstract】 COPNA resin was prepared from pyrene with benzaldehyde as a crosslinking agent in the presence of ptoluenesulfonic acid catalyst 1HNMR and 13 CNMR measurements indicated that the resin possess a triarylmethane structure Highly polymerized COPNA resin was obtained by heat treatment which resulted in dehydrogenation of refined Bstage resin The concentration of the stable freeradicals in Bstage resin was measured by ESR The magnitization characteristics of the resin was investigated using a magnetometer with lifting and drawing specimens The experimental results showed, that with an increase in external magnetic field intensity, the magnetization intensity of the specimen dehydrogenated at 1000℃ reached saturation rapidly The saturated magnetization intensity is 1 272Am 2/kg at 1 5K It indicated that the triarylmethane structure is the essential structure responsible to the ferromagnetic property更多还原