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Table 2 Bond decomposition temperatures of the main polyurethane functional groups (Gharehbagh & Ahmadi 2012)

From: The fire toxicity of polyurethane foams

Bond (see Figs. 2 and 3 for structure) Decomposition temperature range/°C
Allophanate 100–125
Biuret 115–125
Urea 160–200
Urethane 180–200
Substituted Urea 235–250
Carbodiimide 250–280
Isocyanurate 270–300