3种晶型抗氧剂1010的表征

摘要

Three polymorphs of antioxidant 1010 were characterized by differential scanning calorimetry(DSC)，infrared absorption spectrometry(IR) and powder X-ray diffraction(XRD).The crystallographic structure of the δ-phase of antioxidant 1010 has been determined.Indices of each power diffraction peaks are detailed.The unitcell is tetragonal system and body-centered lattice.The unit cell parameters are:a＝1.9789nm，c=0.8847nm，V＝3.4645nm3，Z＝2，Dx＝1.033g*cm－3.%利用示差扫描量热分析(DSC)、红外光谱(IR)、粉末X射线衍射(XRD)对3种晶型抗氧剂1010进行了表征，对δ－晶型的晶体结构进行了进一步研究，指标化了该晶体的粉末X射线衍射峰，其晶体结构为四方晶系，体心点阵结构，晶胞参数为a＝1.9789nm、c＝0.8847nm，晶胞体积为V＝3.4645nm3，每个晶胞中含2个分子，晶体密度为1.033g*cm－3。