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← ScienceWhich outcome occurs when a polymer melts at a temperature where chain scission can occur?
A)Reduced average molecular mass results✓
B)Increased crystallinity often develops
C)Exothermic crosslinking is favored then
D)Enhanced tensile strength will usually materialize
💡 Explanation
Polymer melting with possible chain scission leads to lower molecular weight because thermal energy causes the breaking of covalent bonds which results chain fragmentation, therefore, reducing the molecule size, thus changing the initial average mass from before, rather than crosslinking under high temperature.
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