| abstract |
The present invention provides compounds of the formula R 1 a R 2 b R 3 c R 4 d R 5 e R 6 f R 7 g R 8 h Si 8 O 12 (R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 = same or different, substituted or unsubstituted alkyl group, cycloalkyl group, alkenyl group, cycloalkenyl group, alkynyl group, cycloalkynyl group, aryl group, heteroaryl group or hydrogen; a + b + c + d + e + f + g + h = 8) and a process for the preparation of fully condensed oligomeric silsesquioxanes of structure 1, as well as non-fully condensed silsesquioxanes, functionalized silsesquioxanes, catalysts and starting compounds of said catalysts The use of the silsesquioxane for the synthesis of and for the synthesis and modification of polymers. |