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Ch.12 - Solids and Modern Materials
Chapter 12, Problem 84

Indicate whether the following statement is true or false: For an addition polymerization, there are no by-products of the reaction (assuming 100% yield).

Verified step by step guidance
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Step 1: Understand the process of addition polymerization. In addition polymerization, monomers with double bonds (like alkenes) react to form a polymer without the loss of any small molecules.
Step 2: Recognize that in addition polymerization, the polymer forms by the successive addition of monomer units, where the double bonds open up and link together.
Step 3: Note that unlike condensation polymerization, which involves the loss of small molecules like water or methanol, addition polymerization does not produce any by-products.
Step 4: Consider the assumption of 100% yield, which implies that all monomers are converted into the polymer without any side reactions or leftover monomers.
Step 5: Conclude that the statement is true because, in addition polymerization with 100% yield, there are no by-products formed.

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Addition Polymerization

Addition polymerization is a type of polymerization where monomers with unsaturated bonds (like alkenes) react to form a polymer. This process involves the breaking of double bonds in the monomers, allowing them to link together into long chains. Unlike condensation polymerization, addition polymerization typically does not produce by-products, as the reaction solely involves the monomers combining.
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Monomers and Polymers

Monomers are small, simple molecules that can join together to form larger structures known as polymers. In the context of addition polymerization, the monomers are usually unsaturated compounds that can undergo reactions to create long-chain molecules. Understanding the relationship between monomers and polymers is crucial for grasping how addition polymerization works and its implications for material properties.
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Reaction Yield

Reaction yield refers to the amount of product obtained from a chemical reaction compared to the theoretical maximum amount possible. In the case of addition polymerization, if the yield is assumed to be 100%, it implies that all monomers are converted into the polymer without any loss or formation of by-products. This concept is essential for evaluating the efficiency and practicality of polymerization processes.
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