Practice Questions
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How does the degree of polymerization influence the properties of a thermoplastic compared to a thermosetting polymer?
In thermoplastics, a higher degree of polymerization means longer chains and more covalent bonds between them. Other options are incorrect because The...
How does the length of polymer chains affect their tensile strength in materials such as plastics?
Longer chains create many twists and overlaps. Other options are incorrect because The idea that more flexibility gives more strength is a mix‑up; Thi...
Why might a polymer with a higher degree of polymerization exhibit greater elasticity compared to one with a lower degree?
A longer chain can stretch more because it has many linked units that can slide past each other. Other options are incorrect because The idea that hea...
In the process of condensation polymerization, how does an increase in the degree of polymerization typically affect the mechanical strength of the resulting polymer?
When chains grow longer, they can slip around each other more and create many tiny contacts between molecules. Other options are incorrect because Som...
In a polymerization reaction involving a free radical initiator, how would an increase in the degree of polymerization affect the thermal stability and mechanical properties of the resulting polymer chain, particularly in the context of addition polymerization?
When more monomers join, the polymer chain gets longer. Other options are incorrect because Some think a longer chain moves more easily, but actually ...
Which of the following materials is a product of addition polymerization?
Polystyrene is made from styrene monomers that join together without losing any atoms. Other options are incorrect because Many think nylon is made by...
A chemical engineer is tasked with developing a new type of biodegradable plastic. They decide to use a polymerization reaction involving lactic acid as a monomer. Which of the following principles of polymerization are most critical for ensuring the resulting polymer has the desired properties, such as strength and biodegradability?
The polymer’s strength and biodegradability depend mainly on how the lactic acid units join together. Other options are incorrect because Heat does no...
Monomer:Polymer :: A:?
A monomer is one tiny piece that sticks together with other pieces to form a long chain. Other options are incorrect because Some think a monomer is a...
Arrange the following steps in the correct order for the process of addition polymerization: A. Initiation B. Propagation C. Termination D. Monomer activation
Initiation is the first step, where free radicals start the chain. Other options are incorrect because Some students think the monomer must be activat...
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