Читать книгу Industrial Carbon and Graphite Materials - Группа авторов - Страница 96

In the formation of CARBONACEOUS MESOPHASE by thermolysis (pyrolysis) of isotropic molten PITCH, the development of a liquid‐crystalline phase is accompanied by simultaneous aromatic polymerization reactions. The reactivity of PITCH with increasing heat treatment temperature and its thermosetting nature are responsible for the lack of a true reversible thermotropic phase transition for the BULK MESOPHASE in most PITCHES. Due to its glass‐like nature, most of the liquid‐crystalline characteristics are retained in the supercooled solid state.

See: BROOKS AND TAYLOR STRUCTURE IN THE CARBONACEOUS MESOPHASE, BULK MESOPHASE, PITCH.