Abstract
Carbonaceous mesophase spheres were prepared from a hydropyrene pitch selectively through two stages, the first and second steps of which were heat-treatment at 430 degree C under vacuum and at 400 degree C under rapid nitrogen flow, respectively. Spheres were isolated by pyridine extraction to define their structure as well as the chemical components by means of optical micrograph, scanning electron micrograph, solvent fractionation and gel permeation chromatography. The spheres of Brooks-Taylor stacking arrangement were found to be mainly composed of condensed trimer, tetramer and pentamer of pyrene units.
| Original language | English |
|---|---|
| Pages (from-to) | 20-21 |
| Number of pages | 2 |
| Journal | Unknown Journal |
| Publication status | Published - 1985 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
SYNTHESIS AND CHARACTERIZATION OF MESOPHASE SPHERES FROM HYDROPYRENE. / Mochida, Isao; Hatano, Hitomi; Korai, Yozo; Fujitsu, Hiroshi.
In: Unknown Journal, 1985, p. 20-21.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - SYNTHESIS AND CHARACTERIZATION OF MESOPHASE SPHERES FROM HYDROPYRENE.
AU - Mochida, Isao
AU - Hatano, Hitomi
AU - Korai, Yozo
AU - Fujitsu, Hiroshi
PY - 1985
Y1 - 1985
N2 - Carbonaceous mesophase spheres were prepared from a hydropyrene pitch selectively through two stages, the first and second steps of which were heat-treatment at 430 degree C under vacuum and at 400 degree C under rapid nitrogen flow, respectively. Spheres were isolated by pyridine extraction to define their structure as well as the chemical components by means of optical micrograph, scanning electron micrograph, solvent fractionation and gel permeation chromatography. The spheres of Brooks-Taylor stacking arrangement were found to be mainly composed of condensed trimer, tetramer and pentamer of pyrene units.
AB - Carbonaceous mesophase spheres were prepared from a hydropyrene pitch selectively through two stages, the first and second steps of which were heat-treatment at 430 degree C under vacuum and at 400 degree C under rapid nitrogen flow, respectively. Spheres were isolated by pyridine extraction to define their structure as well as the chemical components by means of optical micrograph, scanning electron micrograph, solvent fractionation and gel permeation chromatography. The spheres of Brooks-Taylor stacking arrangement were found to be mainly composed of condensed trimer, tetramer and pentamer of pyrene units.
UR - http://www.scopus.com/inward/record.url?scp=0022175912&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0022175912&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0022175912
SP - 20
EP - 21
JO - Quaternary International
JF - Quaternary International
SN - 1040-6182
ER -