Emulsion polymers including one or more 1,1-disubstituted alkene compounds, emulsion methods, and polymer compositions
First Claim
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1. A process comprising the steps of:
- i) agitating a mixture comprising;
about 25 weight percent or more of a carrier liquid, a surfactant, and one or more monomers to form micelles of the one or more monomers in the carrier liquid, wherein the one or more monomers includes one or more 1,1-disubstituted alkenes;
ii) reacting an activator with at least one of the monomers in the micelle for initiating the anionic polymerization of the one or more monomers; and
iii) anionically polymerizing the one or more monomers to a number average molecular weight of about 700 g/mole or more;
wherein the activator includes an ionic metal amide, an hydroxide, a cyanide, a phosphine, an alkoxide, an amine, an organometallic compound, or a metal benzoate; and
the carrier liquid includes water and the water is present at a concentration of about 40 weight percent or more, based on the total weight of the carrier liquid and the one or more monomers,wherein the resulting polymer has a polydispersity index of about 1.7 or less.
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Abstract
The present teachings show that it is possible to polymerize 1,1-disubstituted alkene compounds in an emulsion (for example using a water based carrier liquid), despite the possible reactions between the monomer and water. Polymerization of 1,1-disubstituted alkene compounds in an emulsion provides opportunities to better control the polymerization compared with bulk polymerization. The emulsion polymerization techniques can be employed for preparing homopolymers, copolymers (e.g., random copolymers), and block copolymers.
223 Citations
20 Claims
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1. A process comprising the steps of:
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i) agitating a mixture comprising;
about 25 weight percent or more of a carrier liquid, a surfactant, and one or more monomers to form micelles of the one or more monomers in the carrier liquid, wherein the one or more monomers includes one or more 1,1-disubstituted alkenes;ii) reacting an activator with at least one of the monomers in the micelle for initiating the anionic polymerization of the one or more monomers; and iii) anionically polymerizing the one or more monomers to a number average molecular weight of about 700 g/mole or more; wherein the activator includes an ionic metal amide, an hydroxide, a cyanide, a phosphine, an alkoxide, an amine, an organometallic compound, or a metal benzoate; and the carrier liquid includes water and the water is present at a concentration of about 40 weight percent or more, based on the total weight of the carrier liquid and the one or more monomers, wherein the resulting polymer has a polydispersity index of about 1.7 or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15, 16, 18)
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9. A process comprising the steps of:
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i) agitating a mixture comprising;
about 25 weight percent or more of a carrier liquid, a surfactant, and one or more monomers to form micelles of the one or more monomers in the carrier liquid, wherein the one or more monomers includes one or more 1,1-disubstituted alkenes;ii) reacting an activator with at least one of the monomers in the micelle for initiating the anionic polymerization of the one or more monomers; iii) anionically polymerizing the one or more monomers to a number average molecular weight of about 700 q/mole or more; and iv) adding one or more second monomers to the emulsion following the step of anionically polymerizing the one or more monomers, wherein the one or more second monomers differ from the one or more monomers in composition or includes a different monomer; and
a step of anionically polymerizing the one or more second monomerswherein the activator includes an ionic metal amide, an hydroxide, a cyanide, a phosphine, an alkoxide, an amine, an organometallic compound, or a metal benzoate; and the carrier liquid includes water and the water is present at a concentration of about 40 weight percent or more, based on the total weight of the carrier liquid and the one or more monomers. - View Dependent Claims (10, 11)
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17. A process comprising the steps of:
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i) agitating a mixture comprising;
about 25 weight percent or more of a carrier liquid, a surfactant, and one or more monomers to form micelles of the one or more monomers in the carrier liquid, wherein the one or more monomers includes one or more 1,1-disubstituted alkenes;ii) reacting an activator with at least one of the monomers in the micelle for initiating the anionic polymerization of the one or more monomers; and iii) anionically polymerizing the one or more monomers to a number average molecular weight of about 700 g/mole or more; wherein the carrier liquid includes water and the water is present at a concentration of about 40 weight percent or more, based on the total weight of the carrier liquid and the one or more monomers; and the reacting step is characterized by a pH of about 5 to about 6.6; wherein the resulting polymer has a polydispersity index of about 1.7 or less.
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19. A process comprising the steps of:
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i) agitating a mixture comprising;
about 25 weight percent or more of a carrier liquid, a surfactant, and one or more monomers to form micelles of the one or more monomers in the carrier liquid, wherein the one or more monomers includes one or more 1,1-disubstituted alkenes;ii) reacting an activator with at least one of the monomers in the micelle for initiating the anionic polymerization of the one or more monomers; and iii) anionically polymerizing the one or more monomers to a number average molecular weight of about 700 g/mole or more; wherein the carrier liquid includes water and the water is present at a concentration of about 40 weight percent or more, based on the total weight of the carrier liquid and the one or more monomers; and the monomer includes methyl propyl methylene malonate, dihexyl methylene malonate, di-isopropyl methylene malonate, butyl methyl methylene malonate, ethoxyethyl ethyl methylene malonate, methoxyethyl methyl methylene malonate, hexyl methyl methylene malonate, dipentyl methylene malonate, ethyl pentyl methylene malonate, methyl pentyl methylene malonate, ethyl ethylmethoxy methylene malonate, ethoxyethyl methyl methylene malonate, butyl ethyl methylene malonate, dibutyl methylene malonate, diethyl methylene malonate (DEMM), diethoxy ethyl methylene malonate, dimethyl methylene malonate, di-N-propyl methylene malonate, ethyl hexyl methylene malonate, methyl fenchyl methylene malonate, ethyl fenchyl methylene malonate, 2 phenylpropyl ethyl methylene malonate, 3 phenylpropyl ethyl methylene malonate, or dimethoxy ethyl methylene malonate; wherein the resulting polymer has a polydispersity index of about 1.7 or less. - View Dependent Claims (20)
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Specification