Methyl-substituted derivatives of 1,3,5-tris(diphenylamino)benzene (TDAB) are found to show unique solid-state morphology, as characterized by differential scanning calorimetry and X-ray diffraction. These compounds readily form stable amorphous glasses having glass-transition temperatures of ca. 50 °C. p-Methyl-substituted TDAB exhibits polymorphism.
1,3,5-三(二苯基
氨基)苯(T
DAB)的甲基取代衍
生物显示出独特的固态形态,经过差示扫描量热法和X射线衍射的表征。这些化合物可以形成稳定的无定形
玻璃,
玻璃转变温度约为50 °C。对位甲基取代的T
DAB表现出多晶型。