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← ScienceWhich consequence results when a large polymer sample undergoes devitrification?
A)Increased brittleness and cracking develops✓
B)Increased elasticity enables shape memory
C)Increased viscosity reduces shear thinning
D)Increased crystallinity raises transition temperature
💡 Explanation
Devitrification causes increased brittleness due to the decrease in amorphous regions disrupting chain mobility, making the material more susceptible to cracking; this is because crystallization occurs. Therefore, brittleness arises when polymers reorganize, rather than becoming more elastic after this glass transition.
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