| 摘要 |
<p>Disclosed herein are compounds of formula (I), compositions having compounds of formula (I) and methods of stabilizing a photodegradable polymer or compound in a composition;
wherein R 1 , R 2 , and R 3 are the same or different and are selected from the group consisting of C 1 -C 30 alkyl, C 3 -C 8 cycloalkyl, substituted alkyl, substituted cycloalkyl, ester, aryl, heteroaryl, heterocycloalkyl, substituted aryl, substituted heteroaryl, substituted heterocycloalkyl, and amino; R 4 , R 5 , R 6 , and R 7 are each independently selected from the group consisting of hydrogen and alkoxy, wherein R 4 and R 5 cannot both be hydrogen and R 6 and R 7 cannot both be hydrogen; a, b, c, and d are each independently an integer of 1 to 4; n is an integer of 1 to 100; and s is an integer of 0 to 100.</p> |
