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Synthesis and Curing of Novel phenol-formaldehyde resins substituted with Citraconamic acids | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 14, Issue 3, 2009, Pages 106-115 | ||
| Author | ||
| Ahlam Marouf Al-Azzawi | ||
| Abstract | ||
| Four new phenolic resins containing pendent citraconamic acids in their repeating units were prepared via condensation of formaldehyde with N-(hydroxy phenyl) citraconamic acids in the presence of acid or base catalyst. The obtained resins were modified by two methods, the first one involved esterification and cyclization by using acetic anhydride and anhydrous sodium acetate, while the second involved free radical polymerization of vinylic bonds in the prepared resins producing cross linked thermally stable polymers. The prepared and cured resins have new properties in hope to serve new applications. | ||
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