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New bisphenol novolac epoxy resins for marine primer steel coating applications

✍ Scribed by Ayman M. Atta; M.I. Abdou; Abdel-Atif A. Elsayed; Mohamed E. Ragab


Book ID
113859033
Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
341 KB
Volume
63
Category
Article
ISSN
0033-0655

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Synthesis of bisphenol a novolac epoxy r
✍ Ayman M. Atta; Nevin O. Shaker; Notaila E. Nasser πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 128 KB πŸ‘ 2 views

## Abstract Bisphenol A novolacs were synthesized in both melting and solution processes using __p__‐formaldehyde and formalin solution in presence of oxalic acid catalyst, respectively. Hydrogen nuclear magnetic resonance, ^1^H NMR, investigations show a high methylene bridge contents in the novol