Compositions providing improved functionalization of terminal anions and processes for improved functionalization of terminal anions
AssigneeFMC Corporation
InventorsRoderic Paul Quirk, Young Joon Lee, James Anthony Schwindeman, Robert James Letchford
Life of this patent
Estimating the term…
Abstract
Compositions including one or more anionic polymerization initiators and one or more additives for improving functionalizing efficiency of living polymer anions are disclosed. The present invention also provides compositions including one or more electrophiles and one or more additives for improving functionalizing efficiency of living polymer anions. Novel electrophiles and processes for improving polymer anion functionalization efficiencies are also disclosed.
Claims30
A composition comprising one or more anionic polymerization initiators and one or more additives for increasing the efficiency of reactions between living polymer anions and electrophiles.
A composition comprising one or more electrophiles for functionalizing living polymer anions and one or more additives for increasing the efficiency of reactions between polymer anions and electrophiles.
A process for improving the efficiency of the coupling reaction between polymer anions and electrophiles, the process comprising reacting one or more living polymer anions with one or more electrophiles in the presence of an additive capable of increasing the functionalization reaction.
Electrophiles of the formula:
- 20
- wherein:
- X is a halogen selected from chloride, bromide and iodide;
- Z is a branched or straight chain hydrocarbon connecting group which contains 1-25 carbon atoms, optionally substituted with aryl or substituted aryl;
- T is selected from the group consisting of oxygen, sulfur, nitrogen, and mixtures thereof;
- A is an element selected from Group IVa of the Periodic Table of the Elements;
- R1, R2, and R3 are each independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, cycloalkyl, and substituted cycloalkyl;
- R, R4, and R5 are each independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, cycloalkyl, and substituted cycloalkyl;
- h is 0 when T is oxygen or sulfur, and 1 when T is nitrogen;
- 1 is an integer from 1 to 7;
- and
- n is 2 or 3.
Dependencies are inferred from the claim text.