The structure of the anisotropic spheres which precipitate from
isotropicpitch during
pyrolysis. The structure of the spheres consists of a lamellar arrangement of aromatic molecules
in parallel layers which are perpendicular to the polar axis of the sphere and which
are perpendicular to the
mesophase-
isotropic phase
interface.
Note:
The term Brooks and Taylor structure is recommended to describe the particular lamellar
morphology of the spherules most commonly precipitated from pyrolysed
pitch. The term honours the workers who first recognized the significance of
carbonaceous mesophase to carbon science and technology and who first defined this spherical
morphology. The term Brooks and Taylor structure does not cover all structures found in the
spherical
mesophase, because other lamellar arrangements have been observed.
Source:
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations
1995))
on page 478
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
