摘要
分别以芘、苯酚为原料，以苯甲醛为交联剂，对甲基苯磺酸为催化剂合成出具有三芳基甲烷结构的聚合物。用红外光谱（ＩＲ）和核磁共振碳谱（１３Ｃ－ＮＭＲ）对聚合物的结构进行了确认。经５００℃～１０００℃高温热致脱氢处理后，得到具有高自旋浓度的稳定的三芳甲基自由基。并用电子自旋共振波谱（ＥＳＲ）对其特征进行了研究。
Triarylmethane structure polymer can be prepared from pyrene, phenol respective, and bezaldehyde as cross linking agent in the presence of p toluenesulfonic acid catalyst. Their structures were characterized by IR and 13 C NMR . High spin concentration triarylmethyl stable free radical can be obtained by 500 ℃￣1000 ℃ heating and dehydrogenation treatment of refined polymer. The characteristics of the different stable free radical was studied by ESR. The experimental results show that with the different heating and dehydrogenation temperature the concentration of the stable free radical is different, that the characteristics of the stable free radical is relation with aromatic material. The characteristics of the free radical of the polymer with auxiliary inorganic material(active carbon) was also studied.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1999年第4期72-74,共3页
Polymer Materials Science & Engineering
基金
国家自然科学基金
燕山石化研究院资助
关键词
三芳甲基
自由基
高聚物
结构
磁性
triarylmethyl free radical, triarylmethane, organic ferromagnet
