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← ScienceWhich consequence results when molecular chains experience high shear?
A)Increased cross-linking occurs throughout sample
B)Chain scission weakens material strength✓
C)Crystallinity rises in amorphous phases
D)Glass transition temperature decreases uniformly
💡 Explanation
Chain scission results under high shear because mechanical stress exceeds the covalent bond energy; therefore bond breakage occurs at weakest points, rather than causing alternative cross-linking actions requiring specific chemical reactions or overall changes in material properties.
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