Synthesis and Characterization of Novel Cardanol Based Benzoxazines

Benzoxazines are a class of phenolic compounds extensively studied in polymer science because of their properties as fiber reinforcements, fire-retardants and curing agents. In this article is described a solvent-less process, based on a Mannich reaction involving a primary amine and an aldehyde, fo...

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Bibliographic Details
Published in:Natural product communications 2009-04, Vol.4 (4), p.521-528
Main Authors: Minigher, Andrea, Benedetti, Elena, De Giacomo, Ornela, Campaner, Pietro, Aroulmoji, Vincent
Format: Article
Language:English
Subjects:
Aldehydes - chemistry
Amines - chemistry
Anacardium - chemistry
Benzoxazines - chemical synthesis
Calorimetry, Differential Scanning
Chemical Sciences
Chromatography, High Pressure Liquid
Life Sciences
Nuclear Magnetic Resonance, Biomolecular
Nuts - chemistry
Phenols - chemistry
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Summary:Benzoxazines are a class of phenolic compounds extensively studied in polymer science because of their properties as fiber reinforcements, fire-retardants and curing agents. In this article is described a solvent-less process, based on a Mannich reaction involving a primary amine and an aldehyde, for the preparation of new benzoxazines deriving from cardanol (a well known phenol obtained as a renewable organic resource and harmful by-product of the cashew industry). Particular attention is given to the synthesis and chemical characterization (both by 1H NMR spectroscopy and HPLC), while the thermal polymerization process has been monitored by differential scanning calorimetry.
ISSN:1934-578X
1555-9475
DOI:10.1177/1934578X0900400416