a single bond and c 1 c 2 alkyl each r is independently selected from b c 1 c 4 alkyl and benzyl and f is an integer selected from 2 and 3 preferably in formula 1 5 e is selected from cyclohexyl and phenyl r u2032 is a single bond r is selected from b c 1 c 4 alkyl and benzyl and f is an integer selected from 2 and 3 wherein each r is independently selected from b c 1 c 4 alkyl and benzyl the initiator compound which constitutes part of the first aspect of the invention is obtainable by reacting a multivinylaminosilane of formula 1 as defined above including all embodiments thereof with an organo alkali metal compound suitable exemplary organo alkali metal compounds include methyllithium ethyllithium n butyllithium s butyllithium t octyllithium isopropyllithium phenyllithium cyclohexyllithium 2 butyllithium 4 phenylbutyllithium t butyldimethylsilyloxypropyllithium dialkylaminopropyllithium n morpholinopropyllithium sodium biphenylide sodium naphthalenide and potassium naphthalenide more preferably the initiator compound is a monolithium alkyl alkylaryl or aryl compound the initiator compound obtainable from the multivinylaminosilane of formula 1 can be prepared in an inert solvent and in the presence of randomizer compounds and suitable solvents are the same as they are used in solution polymerization as defined below generally in accordance with the second aspect of the present invention the multivinylaminosilanes of formula 1 of the first aspect of the invention are prepared by reacting in the presence of a base an amine having at least two groups independently selected from a primary amino group and a secondary amino group with a silane of formula 2 as defined.