Polymerisation of heat-cured methyl methacrylate is initiated by______________?
Correct answer: B. Benzoyl peroxide free radical
- A. Tertiary amine
- B. Benzoyl peroxide free radical
- C. Hydroquinone
- D. Methyl ether
Explanation
Heat-cured methyl methacrylate uses benzoyl peroxide as its initiator; heating decomposes it into free radicals that start polymerization. Tertiary amine is mainly associated with chemically activated acrylic systems.
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