Paper
Mesomorphic Plastic Phases of Organic Crystals
- Authors:
- Yaroslav О. Shablovsky
- Abstract
- A thermodynamical approach to the analytical description of transitions “non-plastic phase – plastic phase” in organic crystals is proposed. An analytical expression for temperature dependence of heat capacity is obtained. It is shown that unlike “pre-transitional” anomalies commonly observed at structural (polymorphic) transformations, the influence of plasticization on elastic properties of organic crystals amounts to nothing more than abrupt changes of these properties in the plasticization point. Baric dependence of the plasticization temperature is found. Available thermodynamical data on adamantane, 1-aminoadamantane, and pentaerythrityl fluoride are analyzed.
- Keywords
- Organic Crystals; Crystal Mesomorphism; Plastic Crystal; Plastic Crystalline Phase; Thermodynamic Properties
- StartPage
- 77
- EndPage
- 82
- Doi