Angelini R, Ruocco G, De Panfilis S
Research Center SOFT INFM-CNR, Università di Roma La Sapienza I-00185, Roma, Italy.
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Aug;78(2 Pt 1):020502. doi: 10.1103/PhysRevE.78.020502. Epub 2008 Aug 8.
The phase diagram of alpha -cyclodextrin/water/4-methylpyridine solutions, a system undergoing inverse melting, has been studied by differential scanning calorimetry, rheological methods, and x-ray diffraction. Two different fluid phases separated by a solid region have been observed in the high alpha -cyclodextrin concentration range (c > or =150 mg/ml) . Decreasing c , the temperature interval where the solid phase exists decreases and eventually disappears, and a first-order phase transition is observed between the two different fluid phases.
通过差示扫描量热法、流变学方法和X射线衍射研究了α-环糊精/水/4-甲基吡啶溶液的相图，该体系发生逆熔化。在高α-环糊精浓度范围（c≥150mg/ml）内观察到由一个固体区域分隔的两种不同流体相。随着c的降低，固相存在的温度区间减小并最终消失，并且在两种不同流体相之间观察到一级相变。
