
9: TRIAZOLE POLYMERS 229
O
N
N
N
CH
3
O
CH
2
CH CH
2
OH
OC
O
CH CH
2
CH
3
Figure 9.12 2-[2- hydroxy-4- alkoxy -(2-oxypropyl
methacrylate)phenyl]2H-4-methoxybenzotriazole
(MBDHG) [53].
Instead of acryloyl chloride or methacryloyl
chloride, the glycidyl esters are used for func-
tionalization with polymerizable compounds. Such
a compound is 2-[2-hydroxy-4-alkoxy-(2-oxypropyl
methacrylate)phenyl]2H-4-methoxybenzotriazole, as
shown in Figure 9.12. It is prepared by the reaction of
4-(5-methoxy-2H-benzotriazole-2-yl)resorcinol with
glycidyl methacrylate. Tetrabutylammonium bromide
is used as a catalyst and hydroquinone is used as a
polymerization inhibitor.
Polymerizable 2-(2-hydroxyphenyl)-2H-benzotria- ...