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Condensation Polymerization
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During the condensation polymerization of a specific polyester, which of the following changes in reaction conditions is most likely to enhance both the polymer's chain length and the formation of methanol as a byproduct?

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A

Increasing the temperature while maintaining a stoichiometric balance of monomers.

B

Decreasing the pressure to favor the formation of gaseous byproducts.

C

Using excess dicarboxylic acid to drive the reaction to completion.

D

Adding a catalyst that specifically inhibits side reactions.

Understanding the Answer

Let's break down why this is correct

Increasing the temperature makes the reaction run faster. Other options are incorrect because Reducing pressure mainly helps remove gases like water vapor; Adding more dicarboxylic acid can push the reaction toward completion, but it also creates excess acid that can compete with alcohol groups.

Key Concepts

Byproduct Formation
Polymer Chain Length
Topic

Condensation Polymerization

Difficulty

medium level question

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understand

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Definition
Definition

Condensation polymerization involves the formation of polymers through a reaction that eliminates small molecules like water or HCl. This process leads to the creation of strong materials like Kevlar and Lexan, used in various applications due to their exceptional strength and durability.

Topic Definition

Condensation polymerization involves the formation of polymers through a reaction that eliminates small molecules like water or HCl. This process leads to the creation of strong materials like Kevlar and Lexan, used in various applications due to their exceptional strength and durability.

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