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Reaction of benzoxazine-based phenolic resins with strong and weak carboxylic acids and phenols as catalysts

✍ Scribed by Joy Dunkers; Hatsuo Ishida

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
222 KB
Volume
37
Category
Article
ISSN
0887-624X

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✦ Synopsis

The reaction of 3,4-dihydro-3,6-dimethyl-2H-1,3-benzoxazine using strong and weak carboxylic acids and phenols as catalysts has been studied using Fourier transform infrared (FTIR) spectroscopy. The auto-accelerated curing using sebacic acid as catalyst is further documented using 1 H-nuclear magnetic resonance (NMR) and dielectric analysis. Termination of curing, using strong acids or no catalyst, are discussed.

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✍ Hajime Kimura; Shuuichi Taguchi; Akihiro Matsumoto πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 English βš– 215 KB πŸ‘ 1 views

Bisphenol A-based benzoxazine that contained oligomers (oligo-Ba) was prepared from bisphenol A, formaline, and aniline. Curing reaction of oligo-Ba with bisoxazoline and the properties of the cured resin were investigated. Consequently, the ring-opening reaction of benzoxazine ring occurred, and th