| http://www.w3.org/ns/prov#value | - enyl wherein essentially all the remaining bonds on silicon are attached to chlorine or bromine atoms such that the polysilane contains from 24 to 61 weight percent of RO-- when R is an alkyl radical, 26 to 66 weight percent of RO-- when R is a phenyl radical, and either 0 to 25 weight percent chlorine or 0-35 weight percent bromine, all based on the weight of the polysilane. 6.
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