General Science • ChemistryHard
Which of the following polymers is an elastomer formed by the copolymerization of 1,3-butadiene and styrene, widely used in the manufacture of automobile tires?
A. Polythene
B. Buna-S✓ Correct Answer
C. Nylon 6,6
D. Polyvinyl chloride
💡 Solution & Explanation
Buna-S, also known as styrene-butadiene rubber, is a synthetic rubber elastomer produced by copolymerizing butadiene and styrene in a ratio of three to one in the presence of a peroxide catalyst, possessing high abrasion resistance and elasticity suitable for tires. Polythene and PVC are thermoplastics, while Nylon 6,6 is a synthetic polyamide fiber. Polymer science plays a vital role in modern materials engineering.
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