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Polymer Glass Transition Temperature
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How does an increase in glass transition temperature (Tg) affect the thermal stability and processing conditions of a polymer during manufacturing?

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A

It improves both thermal stability and allows for higher processing temperatures.

B

It decreases thermal stability and requires lower processing temperatures.

C

It has no effect on thermal stability but lowers the processing temperature.

D

It increases brittleness, negatively impacting processing conditions.

Understanding the Answer

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Increasing Tg means the polymer stays firm for longer. Other options are incorrect because Many think a higher Tg hurts stability, but it is the opposite; Some believe that a higher Tg means you must lower the temperature to process.

Key Concepts

Tg and Thermal Stability
Significance of Tg in Polymer Processing
Topic

Polymer Glass Transition Temperature

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medium level question

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Deep Dive: Polymer Glass Transition Temperature

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Definition
Definition

Polymer Glass Transition Temperature (Tg) is the temperature at which a polymer transitions from a rigid, glassy state to a flexible, rubbery state. Understanding Tg is crucial as it determines a polymer's properties like flexibility and brittleness, impacting real-world applications such as the Challenger shuttle disaster.

Topic Definition

Polymer Glass Transition Temperature (Tg) is the temperature at which a polymer transitions from a rigid, glassy state to a flexible, rubbery state. Understanding Tg is crucial as it determines a polymer's properties like flexibility and brittleness, impacting real-world applications such as the Challenger shuttle disaster.

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