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Predicted energy absorbed, ξ, versus exposure time during UVC irradiation derived from a thermomechanical model [19]. The diamond symbols correspond to 10, 20, and 30 min exposure times. The circular symbol corresponds to the threshold point, i.e., when ξ = ξD ≈ 1.2 × 103 J/g at an exposure duration of seven minutes for chain scission.
