MHT CET202523 Apr 2025Morning ShiftChemistryPolymersActual
What are the monomers used in preparation of PHBV?
Options
- AHOOC - ( CH ₂ )₄- COOH and H ₂ ~N - ( CH ₂ )₆- NH ₂
- BC ₆ H ₅ OH and CH ₂ O
Correct answer
2
Step-by-step solution
PHBV (Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)) is a biodegradable copolymer synthesized from two hydroxyl acid monomers via condensation polymerization. Analysis of options reveals that only option C provides the correct monomers: HO - CH ( CH ₃)- CH ₂- COOH (3-hydroxybutyric acid) and HO - CH ( CH ₂ CH ₃)- CH ₂- COOH (3-hydroxyvaleric acid). Option A yields Nylon 6,6, option B produces Dacron, and option D forms Bakelite. Final answer: C