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← ScienceWhich outcome limits polymer chain propagation in emulsion polymerization?
A)Depletion of available monomer concentration
B)Increased catalyst fouling rate on pellets
C)Chain-transfer to the solvent occurring
D)Termination due to radical recombination✓
💡 Explanation
Termination halts polymer growth because radical recombination consumes active chain carriers, depleting reactive sites; therefore propagation ceases, rather than chain transfer or monomer depletion, which influence chain length under continuous reactions rates.
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