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Thermally initiated oligomerization of metallic salts of methacrylic acid in solid state

✍ Scribed by Kiyoshi Naruchi; Masatoshi Miura


Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
425 KB
Volume
22
Category
Article
ISSN
0032-3861

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Thermal dehydration process of PMAA was investigated by solid-state 13 C NMR. For heat-treated PMAA at 150Β°C, 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