Patent ID: 8426483

Claim:
An initiator of the general formula (I) {[M(L) a ]X b } n (I), wherein M=a Ag metal cation, L=a ligand having at least one double and/or triple bond, selected from the group consisting of propene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, isoprene, norbornene, cyclohexene, cyclooctene, cyclodecene, 1,4-cyclohexadiene, 4-vinylcyclohexene, trans-2-octene, styrene, 5-norbornene-2-carboxylic acid, butadiene, 1,5-hexadiene, 1,6-heptadiene, 1,7-octadiene, 1,9-decadiene, sorbic acid ethyl ester, 1,3-cyclohexadiene, 1,3-cyclooctadiene, 1,5-cyclooctadiene, norbornadiene, dicyclopentadiene, cycloheptatriene, trans,trans,trans-1,5,9-cyclododecatriene, trans,trans,cis-1,5,9-cyclododecatriene, cyclooctatetraene, squalene, diallyl carbonate, diallyl ether, diallyldimethylsilane, nopol, cyclopentadiene, ethyl vinyl ether, limonene, 1,2-dihydronaphthalene, cinnamic acid ethyl ester, ethyl acrylate, ethyl methacrylate, stilbene, oleic acid methyl ester, linoleic acid methyl ester, linolenic acid methyl ester, diphenylacetylene, dimethylacetylene, 3-hexine, 1,8-cyclotetradecadiine, propargyl alcohol, vinylacetylene, 1-phenylpropine, and 1,8-nonadiine, X=a counterion selected from the group consisting of hexafluoroantimonate (SbF 6 − ), hexafluorophosphate (PF 6 − ), hexafluoroaluminate (AIF 6 3− ), trifluoromethanesulfonate (CF 3 SO 3 − ), nitrate (NO 3 − ), hexafluoroarsenate (AsF 6 − ), tetrakis(pentafluorophenylborate) (B[C 6 F 5 ] 4 − ), tetrakis[3.5-bis (trifluoromethyl)phenyl]borate (B[C 6 H 3 (CF 3 ) 2 ] 4 − ), tetraphenylborate (B[C 6 H 5 ] 4 − ) , hexafluorotitanate (TiF 6 2− ), hexafluorogermanate (GeF 6 2− ), hexafluorosilicate (SiF 6 2− ), hexafluoronickelate (NiF 6 2− ), and hexafluorozirconate (ZrF 6 2− ), and a=1 to 10, b=1 to 10, n=1 to 20,000.