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← ScienceWhich outcome occurs during the propagation step of molecular chain polymerization?
A)Addition of monomers to growing chain✓
B)Termination reactions yielding stable polymer
C)Initiator radicals quench active centres
D)Heat dissipation exceeds cooling capacity
💡 Explanation
Monomers sequentially add to a reactive chain end through chain growth polymerization, because the active site extends, therefore resulting in chain elongation rather than termination or initiation, the mechanism being radical addition.
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