Solution polymers including one or more 1,1-disubstituted alkene compounds, solution polymerization methods, and polymer compositions
AssigneeSirrus, Inc.
InventorsAniruddha Palsule, Alexander R. Holzer, Peter Rulon Stevenson, Kshitij Kishen Parab, Jeffrey M. Sullivan
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Abstract
The present teachings show that it is possible to polymerize 1,1-disubstituted alkene compounds in a solution (for example using one or more solvents). Polymerization of 1,1-disubstituted alkene compounds in an solution provides opportunities to better control the polymerization compared with bulk polymerization. The solution polymerization techniques can be employed for preparing homopolymers, copolymers (e.g., random copolymers), and block copolymers.
Claims33
A process comprising the steps of:
- i) mixing at least one monomer with a solvent;
- ii) adding an initiator to the solvent or the mixture of the solvent and the at least one monomer;
- iii) anionically polymerizing the at least one monomer to form a polymer having a weight average molecular weight of about 3000 daltons or more, wherein the at least one monomer includes a 1,1-disubstituted alkene compound in solution.
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A process comprising the steps of:
- anionically polymerizing two or more monomers in solution to form a random copolymer, wherein the two or more monomers includes a first monomer that is a 1,1-disubstituted alkene compound and a second monomer different from the first monomer, wherein the anionically polymerizing process comprises the steps of:
- i) mixing at least the first monomer, the second monomer, and the solvent;
- ii) adding an initiator;
- ii) reacting the initiator with one of the two or more monomers for initiating the anionic polymerization of the two or more monomers;
- and
- iii) anionically polymerizing the two or more monomers to form a polymer having a weight average molecular weight of about 3000 daltons or more, including both the first monomer and the second monomer;
- wherein the random copolymer has a polydispersity index of 1.5 or less.
A process comprising the steps of:
- anionically polymerizing two or more monomers in solution to form a random copolymer, wherein the two or more monomers includes a first monomer that is a 1,1-disubstituted alkene compound and a second monomer different from the first monomer, wherein the anionically polymerizing process comprises the steps of:
- i) mixing at least the first monomer, the second monomer, and the solvent;
- ii) adding an initiator;
- ii) reacting the initiator with one of the two or more monomers for initiating the anionic polymerization of the two or more monomers;
- and
- iii) anionically polymerizing the two or more monomers to form a polymer having a weight average molecular weight of about 3000 daltons or more, including both the first monomer and the second monomer;
- wherein the first monomer is present at greater than 70 weight percent, based on the total weight of the random copolymer.
Dependencies are inferred from the claim text.