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← ScienceWhich outcome occurs when amorphous material heats unevenly?
A)Localized glass transition temperature depression✓
B)Uniform polymer chain crystallization rate
C)Decreased thermal stress cracking potential
D)Homogeneous polymer network cross-linking
💡 Explanation
The localized glass transition temperature will depress because uneven heating causes compositional heterogeneity, impacting the temperature at which the material transitions from glassy to rubbery; therefore lowering Tg rather than uniform reactions due to varied thermal processing.
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