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Bulk copolyesterification of azelaic acid, o-phthalic anhydride and trimethylolpropane. Statistical distributions of acid branches on triol units studied by 13C n.m.r.

✍ Scribed by Roger Petiaud; Henri Coyard; Quang Tho Pham


Book ID
107847237
Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
483 KB
Volume
36
Category
Article
ISSN
0032-3861

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A detailed structural analysis of the copolyesterification in bulk without any external catalyst at 160ЊC between o-phthalic anhydride (P), oleic acid (O), and trimethylolpropane (T) with a mol ratio ([{COOH]/[{OH]) Å 0.70 has been carried out by high resolution 13 C nuclear magnetic resonance ( 13