以双酚A、聚醚胺(M1000)和多聚甲醛为原料,甲苯为溶剂制备水溶性苯并噁嗪单体(Ba-Jeff)。通过非等温差示扫描量热(DSC)法研究Ba-Jeff结晶动力学。采用Kissinger法和Ozawa法计算Ba-Jeff结晶过程中的表观活化能和指前因子。通过偏振光学显微镜(POM)原位观察Ba-Jeff晶型和晶体生长过程。结果表明:Ba-Jeff结晶时平均表观活化能和指前因子分别为67.7kJ/mol和1.2×1017。Ba-Jeff在低温可形成典型球晶。
Water-soluble benzoxazine (Ba-Jeff) monomers were synthesized by using bisphenol A,polyether amine and paraformaldehyde as raw materials.Toluene was used as solvent.The crystallization kinetics of (Ba-Jeff) was researched through non-isothermal differential scanning calorimetry (DSC).Kissinger and Ozawa methods were employed to calculate the apparent activation energy (Ea) and pre-exponential factor (A) of Ba-Jeff during crystalline process.The crystal type and crystal growing process were detected through in-situ polarizing light microscopy (POM).The results showed that the average Eaand A of Ba-Jeff in crystal process was 67.7kJ/mol and 1.2×1017 respectively.Ba-Jeff formed spherical crystals under low temperature.
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基金资助
西南石油大学培育项目(2014PYZ013);西南石油大学大学生开放实验重点项目(KSZ16114)
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