✦ LIBER ✦

Synthesis and characterization of maleic anhydride oligomers

✍ Scribed by Severini, Febo ;Pegoraro, Mario ;Ricca, Giuliana ;Audisio, Guido ;Dainese, Donatella ;Gallo, Raffaele

Publisher: Wiley (John Wiley & Sons)
Year: 1990
Tongue: English
Weight: 420 KB
Volume: 23
Category: Article
ISSN: 0007-1641
DOI: 10.1002/pi.4980230106

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✦ Synopsis

Abstract

Maleic anhydride (MA) reacts in acetone solution with pyridine (Py) at room temperature with carbon dioxide evolution and formation of oligomers having average M̄~n~ ranging from 400 to 700 daltons. The influence of pyridine concentration on the rate of decarboxylation has been studied. The product obtained with molar ratio MA/Py = 1.64 is very reproducible. This product has been characterized with different analytical techniques. The results obtained allowed us to propose a reaction scheme for the oligomerization.

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