## Abstract Polymers containing rigid aromatic structures in the chain backbone usually gave high thermal stability and good flammability resistance. Three glycidyl ethers of epoxy resins were prepared from 2,4βdi(__p__βhydroxystyryl)pyridine (2,4βDGESP), 2,6βdiβ(__p__βhydroxystyryl)pyridine (2,6βD
Synthesis and characterization of oligosalicylaldehyde-based epoxy resins
β Scribed by E. Sahmetlioglu; H. Mart; H. Yuruk; Y. Surme
- Book ID
- 111490939
- Publisher
- Versita
- Year
- 2006
- Tongue
- English
- Weight
- 285 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0366-6352
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β¦ Synopsis
Abstract
The synthesis of a new epoxy resin of oligosalicylaldehyde by the reaction with epichlorohydrin is reported. New resinβs epoxy value and chlorine content were determined and found to be 25% and 1%, respectively. The characterization of the new resin was instrumented by FTIR, 1H NMR, scanning electron microscopy, and thermal gravimetric analyses. TGA results showed that the cured epoxy resin has a good resistance to thermal decomposition. The mass losses of cured epoxy resin were found to be 5%, 10%, 50% at 175Β°C, 240Β°C, and 400Β°C, respectively. On the curing procedure the resin was cured with polyethylenepolyamine at 25 Β°C for 8 h and 100Β°C for 1.5 h. The FTIR spectrum of new epoxy resin gave the peak of oxirane ring at αΉ½ = 918 cmβ1.
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