Table 1: Gel fraction in PAA and PAA with different content of N-phenylbenzothioamide.

Time of irradiation (h)	Gel fraction (%)
	PAA	PAA + 1% thioamide	PAA + 3% thioamide	PAA + 5% thioamide
0	0	68.6	82.8	87.4
1	58.2	72.6	87.2	88.6
2	62.1	72.7	87.3	90.5
5	74.0	76.4	88.7	91.9
10	78.9	86.2	88.8	93.5
15	86.0	91.1	90.8	96.5
20	86.1	93.6	93.5	96.8
25	87.0	95.3	95.9	98.0