Molecular design and synthesis of functional photothermopolymers from hydroxyl benzoic acids

Xiao Tong; Jiangnan Gu; Liyuan Wang; Yingquan Zou; Shangxian Yu

doi:10.1117/12.388355

23 June 2000 Molecular design and synthesis of functional photothermopolymers from hydroxyl benzoic acids

Xiao Tong, Jiangnan Gu, Liyuan Wang, Yingquan Zou, Shangxian Yu

Proceedings Volume 3999, Advances in Resist Technology and Processing XVII; (2000) https://doi.org/10.1117/12.388355
Event: Microlithography 2000, 2000, Santa Clara, CA, United States

Abstract

The most applicable hydroxyl benzoic acid monomers were optimized to synthesize the thermolysis-decarboxylation polymers according to the relative results of TG analysis of hydroxyl benzoic acids, their ¹³C-NMR spectra analyses and their quantum chemistry calculation with AB-INITIO method. On the basis of the empirical rule -- M/A value rule, while phenols with high M/A value and hydroxyl benzoic acids were both cocondensed with formaldehyde at proper ratio, the novolak resin with carboxyl groups used as a thermal imaging material could be obtained. In the presence of an acid catalyst, such as oxalic acid, a hydroxyl benzoic acid could be additionally polymerized with divinyl benzene (DVB) to synthesize another kind of polymer with not only carboxyl groups but also phenolic hydroxyl groups. The thermal imaging mechanisms of these polymers with carboxyl groups were discussed in the paper.

Citation Download Citation

Xiao Tong, Jiangnan Gu, Liyuan Wang, Yingquan Zou, and Shangxian Yu "Molecular design and synthesis of functional photothermopolymers from hydroxyl benzoic acids", Proc. SPIE 3999, Advances in Resist Technology and Processing XVII, (23 June 2000); https://doi.org/10.1117/12.388355

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