Solid-state 13C NMR study on thermal deh
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Atsushi Asano; Masaru Eguchi; Takuzo Kurotu
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Article
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1999
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John Wiley and Sons
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English
โ 169 KB
๐ 2 views
Thermal dehydration process of PMAA was investigated by solid-state 13 C NMR. For heat-treated PMAA at 150ยฐC, at which the dehydration goes very slowly, we observed three 13 C peaks at 172, 178, and 187 ppm in the carboxyl group region. The peak at 172 ppm is due to the intramolecular cyclic anhydri