Novel initiators for anionic polymerization

Claim 2

A process of homopolymerization or copolymerization of monomers which are vinyl monomers or dienic monomers capable of undergoing anionic polymerization by opening of an ethylenic double bond in the presence of a solvent and wherein the initiator comprises the product from the association of an alkali metal amide and the salt from at least one compound which is an hydroxylated compound, with the same alkali metal in an aprotic solvent.

Claim 3

A process of homopolymerization or copolymerization according to claim 1 wherein the initiator is prepared from an alkali metal amide which is a member selected from the group consisting of sodium amide, lithium amide, and potassium amide and a hydroxylated compound which is a member selected from the group consisting of primary, secondary, and tertiary alcohols.

Claim 4

A process of homopolymerization or copolymerization according to claim 1 wherein the initiator consists of the association product of the following compounds: NaNH 2 , dodecanol NaNH 2 , 2,2-dimethyl propanol NaNH 2 , 2-methyl propanol NaNH 2 , tetrahydrofurfuryl alcohol NaNH 2 , allyl alcohol NaNH 2 , 2,6-dimethyl 3-heptanol NaNH 2 , isopropanol NaNH 2 , neopentyl alcohol NaNH 2 , t-butyl alcohol NaNH 2 , 2-methyl 2-hexanol NaNH 2 , 2-methyl 2-butanol NaNH 2 , 5-n-butyl 5-nonanol NaNH 2 , 2-methyl cyclohexanol NaNH 2 , adamantanol NaNH 2 , phenol NaNH 2 , diethylaminophenol NaNH 2 , 2,5-dimethyl 2,5-hexanediol NaNH 2 , ethylene glycol methyl ether NaNH 2 , ethylene glycol butyl ether NaNH 2 , methoxyphenylmethanol NaNH 2 , di(methoxyphenyl) methanol NaNH 2 , ethylene glycol phenyl ether NaNH 2 , diethylene glycol methyl ether NaNH 2 , diethylene glycol ethyl ether NaNH 2 , diethylene glycol butyl ether NaNH 2 , diethylene glycol phenyl ether NaNH 2 , diethylene glycol decyl ether NaNH 2 , triethylene glycol ethyl ether NaNH 2 , triethylene glycol butyl ether NaNH 2 , pentaethylene glycol ethyl ether NaNH 2 , hexaethylene glycol ethyl ether NaNH 2 , diethyl ketone (enol form) NaNH 2 , methylphenyl ketone (enol form) LiNH 2 , tetrahydrofurfuryl alcohol LiNH 2 , diethylene glycol ethyl ether KNH 2 , t-butanol KNH 2 , diethylene glycol ethyl ether.

Claim 5

The process according to claim 2 wherein said hydroxylated compound is a member selected from the group consisting of an alcohol substituted by a heterocyclic group, alcohols containing the ethylenic unsaturation, alcohols substituted by an aromatic group, alicyclic alcohols, aromatic alcohols, polyhydroxy compounds, ether-alcohols, polyetheralcohols, and enols from ketones and amino acids.