7. Mesophase formation from decacyclene and acenaphtylene
โ Scribed by J.M Guet; C Clinard; D Tchoubar
- Book ID
- 102998526
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 91 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0008-6223
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The products obtained by heating sucrose at 6.9 MPa hydrogen, with and without hydriodic acid, at temperatures between 200 and 400ยฐC have been examined by solid-state and solution '"C NMR and FTIR spectroscopy. In the absence of hydriodic acid, pyrolysis of sucrose produced an aromatic char, even at
Abstr anthracene chars heat treated between 500 and 1200ยฐC is developped and applied to d.c. electrical conductivity, paramagnetic susceptibility and apparent density. An inhomogeneous process for the carbonization is proposed, in agreement with recent results on the structure of these chars. acts 3