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Proceedings Paper

Reactivity determination of carbon atoms on benzene rings of phenols
Author(s): Jiangnan Gu; Xiao Tong; Yingquan Zou; Shaoren He; Shangxian Yu
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Paper Abstract

On the basis of the synthesis of novolac, resol resins and phenolic resins with carboxyl groups, several interesting results are found from the analyses on their properties and microstructures. It is indicated that the reactivity of some carbon atom on the benzene ring of a phenolic compound can be determined by its calculation of quantum chemistry or its C-NMR spectrum in its addition reaction and condensation polymerization with aldehydes, or in its addition reaction and polymerization with conjugated polyene compounds. In general, the lower the net charge values of some carbon atoms on the benzene ring of a phenolic compound, the lower the chemical shift values of the carbon atoms in its C-NMR spectrum, the greater the reactivity of the carbon atoms. The reactivity of a phenolic compound with a carboxyl group in its decarboxylation reaction can be determined in the same way. These conclusions are very important for the molecular design and the control of synthesis conditions of novolac, resol resins with carboxyl group. It is also of great importance for the design of resists and thermo- sensitive compositions used for thermo-sensitive CTP plates.

Paper Details

Date Published: 11 June 1999
PDF: 8 pages
Proc. SPIE 3678, Advances in Resist Technology and Processing XVI, (11 June 1999); doi: 10.1117/12.350226
Show Author Affiliations
Jiangnan Gu, Beijing Normal Univ. (China)
Xiao Tong, Beijing Normal Univ. (China)
Yingquan Zou, Beijing Normal Univ. (China)
Shaoren He, Beijing Normal Univ. (China)
Shangxian Yu, Beijing Normal Univ. (China)

Published in SPIE Proceedings Vol. 3678:
Advances in Resist Technology and Processing XVI
Will Conley, Editor(s)

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