The properties of crosslinked thermosetting resins depend markedly on the completeness of the crosslinking process. Determination of the degree of cure of an unsaturated polyester resin has been studied previously by mechanical, spectroscopic and volume resistivity methods. I n this respect the effe
Synthesis, crosslinking and degradation of some unsaturated polyester resins
β Scribed by Ninette L. Doss; Samia Habib; Michael H. Nosseir
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 325 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
Synopsis
Some unsaturated polyester resins were prepared by the eater interchange between pcarbethoxymaleananilic acid and p-carbethoxysuccinanilic acid with saturated and unsaturated &oh. Moreover, copolymers were also synthesized by the polyesteri6cation of the aforementioned acids and maleic anhydride with the abovementioned glycols. The structure of both the unsaturated polyester resins and copolymer resins was eatablished by IR, W, and NMR spectroscopy. Also, viscosity measurements and molecular weight determinations were further tools for their structural elucidation. All the products were attempted to cure with styrene in the presence of benmyl peroxide as initiator, and the produced network structures, in the form of films, were tested as surface coating materials for glass and metals. The structure of the cured products was established after their degradation, by physical and spectroscopical means.
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