Journal ArticleDOI
Glass-reinforced Polyimide Composites based on Poly(4-furanyl-butan-2-one)
TLDR
In this article, a novel approach was used to develop a matrix resin for processable poiyimide-glass-fibre composites without the evolution oQf by-products.Abstract:
A novel approach was used to develop a matrix resin for processable poiyimide-glass-fibre composites. Furfural-acetone (FAC) resin, poly(4-Furanyl butan-2-one), and various bismaleimides were polymerized at 140 + 10 and 180+ 10+C by in situ Diels-Alder intermolecular reaction into moderately thermally stable and highly cross-linked polyimide-glass-fibre composites without the evolution oQf by-products. The fabricated composites (i.e. laminates) were characterized by their chemical resistance and mechanical propertiesread more
Citations
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Journal ArticleDOI
Polyimides containing s-triazine ring
H. S. Patel,Vimal C. Patel +1 more
TL;DR: A series of new polyimides containing s -triazine ring have been synthesized via Diels-Alder intermolecular polymerization of 2,6-bis(2-furanyl methyl imino)-4-(2-butoxy)-1,3,5-triazine with different bis(maleimide) compounds first, than aromatization of corresponding Diels−Alder products.
Journal ArticleDOI
Novel Polyimide System Based on Nitro Displacement/Diels-Alder Reactions
H. S. Patel,S. R. Patel +1 more
TL;DR: In this article, a poly(ether-imide) was prepared by two simultaneous reactions, that is, Diels-Alder reaction and nitro displacement reaction, and the obtained polymers were treated with acetic anhydride to form cyclic imide, as well as aromatization of Diels Alder adduct.
Journal ArticleDOI
Synthesis, Characterization and Glass Reinforcement of Poly(Ester Amido Imide)s
TL;DR: In this article, the intermolecular Diels-Alder (DA) reaction of bismaleimide (II) having epoxy resin segment with various bisfurans (Ia-e) having amide bridge was carried out with tetrahydrofuran as a solvent, as well as in bulk, followed by aromatization of DA polyadduct intermediates in the presence of acetic anhydride.
Journal ArticleDOI
Synthesis, Characterization and Material Application of Poly(ester-oxysilane-imide)s Having Epoxy Residues
TL;DR: In this paper, the intermolecular Diels-Alder (DA) reaction of epoxy residue based bismaleimides (IIa-d) with bis(furan-2-ylmethoxy) dimethyl silane (Bisfuran) (I) was carried out in tetrahydrofuran as a solvent, as well as in bulk, followed by aromatization of DA polyadduct intermediates in the presence of acetic anhydride.
Journal ArticleDOI
New monomers for polyimides
H. S. Patel,V. C. Patel +1 more
TL;DR: In this article, a series of new monomers for polyimide (PI) formation were prepared by the condensation reaction of 4-alkoxy-2,6-dichloro-s-triazine (I) with 2-furanmethylamine.
References
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Journal ArticleDOI
A Text-Book of Practical Organic Chemistry
TL;DR: A text-book of Practical Organic Chemistry including Qualitative Organic Analysis by Dr Arthur I Vogel as mentioned in this paper, intended as a comprehensive laboratory manual for students of organic chemistry, gives a full and valuable description of organic chemical technique, details of preparation of more than six hundred compounds, and a scheme of qualitative organic analysis.
Journal ArticleDOI
Polyimides based on Poly(4-furanyl-butan-2-one)
TL;DR: In this paper, a Diels-Alder reaction of furfuralacetone (FAC) resin with various bismaleimides was carried out in tetrahydrofuran (THF) as solvent as well as in bulk.