对叔辛基酚的多晶特性

LU Yongyan; LIU Haidao; YIN Qiuxiang

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对叔辛基酚的多晶特性

更新时间：2025-12-10

- 对叔辛基酚的多晶特性
- CIESC Journal Issue 9, (2006)
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- Online First：25 September 2006，
  
  Published：25 September 2006
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LU Yongyan, LIU Haidao, YIN Qiuxiang. 对叔辛基酚的多晶特性[J]. CIESC Journal, 2006, (9).
DOI：

LU Yongyan, LIU Haidao, YIN Qiuxiang. 对叔辛基酚的多晶特性[J]. CIESC Journal, 2006, (9). DOI：

摘要

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.

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