Table 1. Thermal Events for Bis-Benzoxazine Monomers As Determined by DSC^a.

							ΔHp
monomer	additive	[additive] (mol %)	Tg1 (°C)	Top (°C)	Tmax (°C)	Tep (°C)	(J g–1)	(kJ mol–1/Bz)	Tg2 (°C)
BA-a			39	203	240	283	299	69.2	157
BA-ab			106	218	257	292	304	70.3	162
BA-a	TDP	1	37	196	243	293	311	71.9	154
BA-a	TDP	2.5	38	186	233	295	318	73.6	160
BA-a	TDP	5	37	187	235	295	318	73.6	153
BA-a	TDP	10	36	178	226	295	324	74.9	153
BA-a	TDP	12	37	172	222	298	331	76.6	154
BA-a	TDP	25	38	154	214	294	322	74.5	155
BA-a	TDA	1	37	186	234	296	241	55.7	164
BA-a	TDA	3.1	37	172	225	298	358	82.8	164
BA-a	TDA	5	37	157	216	295	324	74.9	168
BA-a	TDA	10	38	111	196	274	365	84.4	174
BA-a	TDA	15	38	145	198	293	388	89.7	184
BA-a	TDA	31	39	133	188	268	292	67.5	187
BF-a			36.2	170	232	292	311	67.4	174
BF-a	TDP	12	34.6	132	218	295	300	65.2	164
BF-a	TDA	15	35.0	130	196	287	294	63.9	199
BT-a				173	221	278	350	79.2	173
BT-a	TDP	12		144	209	278	316	71.5	196
BT-a	TDA	15		146	191	269	315	71.3	180

^aT_g1 = possible glass transition or melting transition of monomer determined using a heating rate of 10 K min^–1; T_op = observed onset of polymerization; T_max = temperature of exothermic peak maximum; T_ep = observed end of polymerization; ΔH_p = enthalpy of exothermic peak (both as J/g of monomer and kJ/mol^–1 of benzoxazine ring); T_g2 = glass transition temperature of polymer determined using a heating rate of 10 K min^–1; TDP = 3,3′-thiodiphenol; TDA = 3,3′-thiodipropionic acid.

^bRecrystallized.