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US 6,660,191 B1Granted
1.5-Diethenylnaphthalene compounds and bifunctional primers for anionic polymerization prepared therefrom
AssigneeElf Atochem S.A.
InventorsTurgut Nugay, Gérard Riess
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Abstract
Bifunctional primer naphthalene compounds having the formula: wherein M″ is an alkali metal, preferably sodium or lithium, and R1 and R2 are, e.g., alkyl radicals, are prepared from corresponding 1,5-diethenylnaphthalene derivatives, and are well suited for the improved anionic polymerization of diene, vinylaromatic and/or (meth)acrylic monomers.
Claims1
A process for the preparation of a bifunctional primer naphthalene compound having the structural formula (VI):
- wherein each R1 is a linear, branched or cyclic alkyl radical having from 1 to 12 carbon atoms, or a substituted or unsubstituted aryl radical;
- each R2 is a C1-C6 alkyl radical, a C5-C12 cycloalkyl radical, or an aromatic radical;
- and each M″ is an alkali metal;
- comprising reacting a 1,5-diethenylphthalene compound having the structural formula (I):
- with a compound having the formula (V):
- R2—M″ (V)
- in which M″ is an alkali metal, and R2 is a C1-C6 alkyl radical, a C5-C12 cycloalkyl radical or an aromatic radical, with the proviso that the compound (V) can be an anionic polymer comprising a terminal carbanion R2 and the counter-ion M″.
4 more elements
Dependencies are inferred from the claim text.