Chemistry - Polymer Question with Solution | TestHub
The monomer that can undergo radical, cationic and anionic polymerisation with equal case -
Options:
Answer:
Solution:
Question Explanation:
The question asks to identify a monomer that can be polymerized using all three major types of chain growth polymerization: radical, cationic and anionic.
Concept:
This question is based on chain-growth polymerization and stability of intermediates.
Solution:
Styrene (Ph−CH=CH2 ) is unique among monomers because its phenyl group stabilizes all three reactive intermediates (radical, carbocation, carbanion) through resonance, making it versatile for various chain growth polymerizations.
Other monomers like ethene (CH2 =CH2 ) and acrylonitrile (CH2 =CH−CN) do not have this versatility. Ethene typically undergoes radical polymerization, while acrylonitrile's electron-withdrawing cyano group (−CN) makes it suitable for anionic polymerization but not cationic polymerization.
Final Answer: The correct option is (B)