Copolymerization of 4-Acetylphenyl Methacrylate with Ethyl Methacrylate: Synthesis, Characterization, Monomer Reactivity Ratios, and Thermal Properties

Table 5

Thermal behaviour and decomposition temperatures of the copolymers and homopolymers.

Polymer	𝑇𝑔 (°C)	𝑇max^a (°C)	IDT^b (°C)	Temperatures (°C) at selected % weight loss
				10%	30%	50%	70%	90%
P(APMA)	146	398	250	296	353	383	400	421
P(APMA0.88)	138	275	256	271	309	370	396	422
P(APMA0.71)	132	408	253	270	327	383	405	428
P(APMA0.56)	125	404	253	272	350	387	407	436
P(APMA0.38)	120	404	243	270	359	390	409	443
P(EMA)	84	392	175	286	345	376	397	429

aTemperature for maximum rate of decomposition. ^bInitial decomposition temperature.