SYNTHESIS OF FUNCTIONALIZED SPHEROSILICATES - NOVEL POLYHEDRAL POLYREACTIVE OLIGOMERS

Four new compounds LSin02.5nJ(Si(CH3)2Y)n n = 8,10; Y = -CHCH2, -CH2Cl, were synthesized and characterized. The synthesis involved the use of the adducts (H3C)3NO.ClSi(CH3)2Y (Y = -CHCH2, -CH2C1) as reagents to convert the =Si-H groups in the hydridospherosiloxanes, HnSin01.5n (n=8.10), directly to = SiOSi(CH3)2 Y (Y=-CHCH2, -CH2C1) groups. These compounds are polyhedral, polyreactive oligomers consisting of a spherosilicate core, LSin02.5n] of cubic (n=8) or pentagonal prismatic (n=10) symmetry with reactive functional groups, either vinyl or chloromethyl, attached to each vertex. © 1990, Taylor & Francis Group, LLC. All rights reserved.