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← ScienceWhich risk increases significantly when attempting laser cutting of PMMA?
A)Monomer formation via chain scission✓
B)Increased plasma absorption coefficients
C)Rapid catastrophic work hardening occurs
D)Resonance energy transfer is quenched
💡 Explanation
During laser cutting, exposing PMMA to high-intensity light induces *chain scission*, which breaks polymer chains, releasing monomer gas because of depolymerization. Therefore, monomer formation increases drastically at these temperatures rather than other photochemical effects since energy input is very high.
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