- 2069 Bhadra · 2 marks
Monomers of polyurethane, nylon 6,6, Bakelite, epoxy
Short answer
Polyurethane: diisocyanate and diol. Nylon 6,6: hexamethylenediamine and adipic acid. Bakelite: phenol and formaldehyde. Epoxy resin: bisphenol-A and epichlorohydrin.
What are monomers of: (i) Polyurethane (ii) Nylon 6,6 (iii) Bakelite (iv) Epoxy resin.
| Polymer | Monomers |
|---|---|
| (i) Polyurethane | A diisocyanate (e.g. toluene-2,4-diisocyanate, OCN–R–NCO) and a diol/polyol (e.g. ethylene glycol, HO–R'–OH) |
| (ii) Nylon 6,6 | Hexamethylenediamine, H₂N(CH₂)₆NH₂, and adipic acid, HOOC(CH₂)₄COOH |
| (iii) Bakelite | Phenol (C₆H₅OH) and formaldehyde (HCHO) |
| (iv) Epoxy resin | Bisphenol-A and epichlorohydrin |
✓ Answer checked by Claude Opus 5.5 (high effort)
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