【摘要】 采用多种溶剂通过溶液法合成一种高成环率的萘 口恶嗪 ,利用1H NMR、FT -IR和DSC对其结构和固化行为进行了研究。结果表明 ,该预聚物的成环率和溶剂的极性有关 ,溶剂的极性越强 ,成环率越低。更多还原

【Abstract】 A novel thermosetting naphthoxazine was synthesized successfully in several solvents.Its composition and structure were characterized by 1H-NMR,FT-IR,and its curing behavior was investigated by different scanning calorimetry(DSC).The result showed that the composition of naphthoxazine was dependent on the polarity of the reaction medium,the stronger of solvent polarity,the less of ring content.更多还原