摘要
使用差示扫描量热法(DSC)和红外光谱法(IR)对1,10-癸二醇(1,10-C10H22O2,A)与1,12-十二烷二醇(1,12-C12H26O2,B)及其二元混合物系统液固相变进行研究。测定了该二元混合系统的相变温度、相变焓和液固平衡相图。该二元系统存在低共熔混合物,其组成为xB=0.333,低共熔温度为328 K。该二元混合系统的IR图谱显示存在氢键缔合现象,长链烷烃中的亚甲基在晶格中是有序规则排列的。该系统具有较低的相变温度和较高的相变焓,是一种潜在的低温储能材料。
The liquid-solid phase transition of 1,10-decanediol, 1,12-dodecanediol and their binary mixture was studied by differential scanning calorimetry （DSC） and IR spectrometry. Values of their phase transition temperature, phase transition enthalpy and phase diagrams were determined. An euteetie mixture （xB =0. 333, T= 328 K） was found to be existing in the binary system, and also the hydrogen bond association as shown by the IR spectrum. The methylene group in the long straight alkyl chain was found to be orderly configurated. Based on the fact of its relatively lower phase transition temperature and higher phase transition enthalpy, the binary system was considered as potential thermal energy-storaging material.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2006年第7期521-523,525,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
