Chain end hydroxyl functionalized branched polyfarnesenes obtained by radical polymerization
AssigneeFina Technology, Inc.
InventorsHerbert Chao, Tomas Trnka
Life of this patent
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Abstract
A terminal hydroxyl functionalized polyfarnesene is provided. The polyfarnesene has more than two terminal hydroxyl groups per molecule, on average, based on the number average molecular weight. The polyfarnesenes may be homopolymers or copolymers of farnesene. Also provided is a method of making these polyfarnesenes having more than two hydroxyl groups per molecule. A composition for making a polyurethane comprising a diisocyanate and the terminal hydroxyl functionalized polyfarnesene is also provided.
Claims20
A terminal hydroxyl functionalized polymeric composition, comprising polymeric molecules comprising farnesene as polymerized units in the polymeric molecules, and having an average of more than two terminal hydroxyl functional groups per polymeric molecule based on a number-average molecular weight of the polymeric molecules.
A method of preparing a terminal hydroxyl functionalized polymeric composition, the method comprising:
- a) mixing at least one monomer comprising farnesene, a reaction vehicle comprising a C4-C8 alcohol, and a free radical initiator comprising hydrogen peroxide to form a reaction mixture in which the free radical initiator reacts with the at least one monomer to form the terminal hydroxyl functionalized polymeric composition;
- wherein the terminal hydroxyl functionalized polymeric composition comprises:
- polymeric molecules comprising the farnesene as polymerized units in the polymeric molecules, and an average of more than two terminal hydroxyl groups per polymeric molecule based on the number-average molecular weight of the polymeric molecules.
A composition for making a polyurethane comprising at least one terminal hydroxyl functionalized polymeric composition and at least one isocyanate-group containing compound,
- wherein the at least one terminal hydroxyl functionalized polymeric composition comprises polymeric molecules comprising farnesene as polymerized units in the polymeric molecules, and has an average of more than two terminal hydroxyl groups per polymeric molecule based on the number average molecular weight of the polymeric molecules;
- and wherein the at least one isocyanate-group containing compound has an isocyanate group functionality of at least two.
Dependencies are inferred from the claim text.