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Question & Answer
Choose the Best Answer
Cationic polymerization involves the use of positively charged ions to initiate chain growth.
Anionic polymerization can only occur in the presence of strong acids.
Free radical polymerization requires an initiator that can generate free radicals.
Termination in free radical polymerization can occur when two radicals collide and combine.
All types of polymerization result in polymers of the same molecular weight.
Understanding the Answer
Let's break down why this is correct
Option A is true because cationic polymerization starts with a positively charged ion that grabs a monomer. Other options are incorrect because Many people think anionic polymerization requires strong acids, but it actually uses a nucleophile or a base to start the chain; The idea that every polymerization makes the same molecular weight is wrong.
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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