Preferred Label : mesophase pitch;
IUPAC definition : A pitch with a complex mixture of numerous essentially aromatic hydrocarbons containing
anisotropic liquid-crystalline particles (carbonaceous mesophase) detectable by optical
microscopy and capable of coalescence into the bulk mesophase.;
Scope note : the carbonaceous mesophase particles are formed from the aromatics of high molecular
mass in mesogenic pitch, which have not yet been aggregated to particles detectable
by optical microscopy within the apparently isotropic pitch matrix. the carbonaceous
mesophase is insoluble in quinoline and pyridine, but the amount of mesophase measured
from microscopical observation appears somewhat higher because parts of the carbonaceous
mesophase can be extracted by the solvents.;
Origin ID : M03850;
See also
A pitch with a complex mixture of numerous essentially aromatic hydrocarbons containing
anisotropic liquid-crystalline particles (carbonaceous mesophase) detectable by optical
microscopy and capable of coalescence into the bulk mesophase.
