CIESC Journal
• 材料科学与工程 • 上一篇 下一篇
卢咏琰;刘海岛;尹秋响
天津大学化工学院,天津 300072
出版日期:
发布日期:
Characteristics of polymorphism of p-tert-octyl phenol
LU Yongyan;LIU Haidao;YIN Qiuxiang
Online:
Published:
Abstract: The polymorphism characteristics of p-tert-octyl phenol was studied.It was found that after thermal treatment of differential scanning calorimetry(DSC), the melting point of p-tert-octyl phenol sample was about 75.0℃,lower than that of the untreated original sample which was 85.4℃.The fusion enthalpy of p-tert-octyl phenol decreased with increasing cooling rate of the thermal treatment.The samples before and after the thermal treatment of DSC were analyzed with DSC, FTIR spectroscopy,and powder X-ray diffraction.The results showed that through the thermal treatment, p-tert-octyl phenol generated a new crystalline form with a lower melting point and lower fusion enthalpy.The solid stability of the polymorphs was further studied.It was found that the two polymorphs belonged to monotropy.The α form with a higher melting point was stable at temperatures below its melting point.The β form with a lower melting point was metastable, which could convert into the α form at a low temperature.
卢咏琰;刘海岛;尹秋响 . 对叔辛基酚的多晶特性 [J]. CIESC Journal.
LU Yongyan;LIU Haidao;YIN Qiuxiang.
0 / / 推荐
导出引用管理器 EndNote|Ris|BibTeX
链接本文: https://hgxb.cip.com.cn/CN/
https://hgxb.cip.com.cn/CN/Y2006/V57/I9/2233