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Thermal initiators are typically used in condensation polymerization, while photoinitiators are not involved.
Both thermal and photoinitiators generate free radicals that promote chain growth without releasing byproducts.
Condensation polymerization involves initiators that release small molecules, while thermal polymerization uses initiators that do not.
Photopolymerization requires light to activate initiators, while thermal polymerization relies on heat to create active sites.
Understanding the Answer
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Photoinitiators need light to split into reactive radicals that start chain growth. Other options are incorrect because Thermal initiators are not limited to condensation reactions; they work in radical polymerizations; Both initiators generate free radicals, but condensation polymerization often releases byproducts like water or alcohol.
Key Concepts
Polymerization Mechanisms
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Deep Dive: Polymerization Mechanisms
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Definition
Polymerization mechanisms such as cationic, anionic, and free radical polymerization dictate how polymer chains grow by adding monomers together. These mechanisms involve initiators that induce chain growth through specific chemical reactions, leading to the formation of various types of polymers with distinct properties.
Topic Definition
Polymerization mechanisms such as cationic, anionic, and free radical polymerization dictate how polymer chains grow by adding monomers together. These mechanisms involve initiators that induce chain growth through specific chemical reactions, leading to the formation of various types of polymers with distinct properties.
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