Table 1.

Means (standard deviations) for flexural strength (MPa) according to initiator (CQ and BAPO %wt) and co-initiator (DMAEMA %wt) used

	DMAEMA 0	DMAEMA 0.5	DMAEMA 1.0
CQ 0.1	0.0 (0.0) B,b	66.0 (13.3) A,b	68.0 (20.9) A,c
CQ 0.3	0.0 (0.0) C,b	61.4 (27.0) B,b	98.9 (44.1) A,abc
CQ 0.5	0.0 (0.0) B,b	86.7 (36.7) A,ab	101.6 (24.1) A,abc
CQ 0.7	0.0 (0.0) B,b	79.1 (33.4) A,ab	83.5 (46.2) A,bc
CQ 0.9	0.0 (0.0) B,b	77.7 (39.8) A,ab	81.8 (46.5) A,bc
BAPO 0.2	92.3 (28.6) A,a	89.5 (31.1) A,ab	101.4 (27.6) A,abc
BAPO 0.7	90.3 (39.2) A,a	104.3 (25.5) A,a	108.5 (29.7) A,ab
BAPO 1.2	95.8 (42.6) A,a	90.4 (32.0) A,ab	92.1 (35.3) A,abc
BAPO 1.7	102.8 (33.7) AB,a	80.0 (29.0) B,ab	119.7 (40.9) A,a
BAPO 2.2	88.7 (24.9) A,a	83.8 (47.2) A,ab	100.0 (28.8) A,abc

Note: Distinct capital letters in a same row and lowercase letters in a same column indicate significant differences (ρ<0.05).

Abbreviations: CQ, camphorquinone; BAPO, bisacylphosphine oxide; DMAEMA, dimethylaminoethyl methacrylate.