High energy density capacitors and compounds for use in their preparation

A high energy density capacitor comprising an organic polymeric dielectric material having a dielectric constant of at least about 10;

• wherein the organic polymeric dielectric material comprises polymerized alkyl (alpha-substituted)acrylate monomers having at least one dipole group;
• wherein when the monomers are polymerized, the dipole group is attached to the main polymeric chain through a heteroatom-containing linking group and wherein the alkyl (alpha-substituted)acrylate monomers are represented by the following structures:
• and wherein:
• Z is a dipole group selected from the group of cyano, sulfone, sulfoxide, pyrrolidonyl, furfuryl, tetrahydrofurfuryl, acetyl, acetylenyl, phenylacetylenyl, 2,2,2-trifluoroethyl, nitrile, cyanoethyl, methoxy, acetate, carbonate, diphenyl, dinitrile, difluoromethyl, dichloroethyl, trifluoromethyl, trichloromethyl, formyl, trifluoroacetyl, phenylketone, ester, cyanoester, acetamide, trifluoroacetamide, amine, alkylamine, dialkylamine, nitro, hydroxyl, ketone, ether, trifluoromethyl ether, phenylethyl, halide, salts thereof, and combinations thereof;
• n is 1-3;
• p is 0-3;
• R1 is H or methyl;
• and
• R2 is a divalent organic linking group, optionally containing oxygen, nitrogen, sulfur, or silicon atoms and optionally containing pendant Z groups.

A high energy density capacitor comprising an organic polymeric dielectric material having a dielectric constant of at least about 10;

• wherein the organic polymeric dielectric material comprises polymerized alkyl (alpha-substituted)acrylate monomers having at least one dipole group;
• wherein when the monomers are polymerized, the dipole group is attached to the main polymeric chain through a heteroatom-containing linking group and wherein the alkyl (alpha-substituted)acrylate monomers are represented by the following structures:
• and wherein:
• Z is a dipole group selected from the group of cyano, sulfone, sulfoxide, pyrrolidonyl, furfuryl, tetrahydrofurfuryl, acetyl, acetylenyl, phenylacetylenyl, 2,2,2-trifluoroethyl, nitrile, cyanoethyl, methoxy, acetate, carbonate, diphenyl, dinitrile, difluoromethyl, dichloroethyl, trifluoromethyl, trichloromethyl, formyl, trifluoroacetyl, phenylketone, ester, cyanoester, acetamide, trifluoroacetamide, amine, alkylamine, dialkylamine, nitro, hydroxyl, ketone, ether, trifluoromethyl ether, phenylethyl, halide, salts thereof, and combinations thereof;
• n is 1-3;
• p is 0-3;
• R1 is H or methyl;
• and
• R2 is a divalent organic linking group, optionally containing oxygen, nitrogen, sulfur, or silicon atoms and optionally containing pendant Z groups.

A high energy density capacitor comprising an organic polymeric dielectric material having a dielectric constant of at least about 10;

• wherein the organic polymeric dielectric material comprises polymerized alkyl (alpha-substituted)acrylate monomers having at least one dipole group;
• wherein when the monomers are polymerized, the dipole group is attached to the main polymeric chain through a heteroatom-containing linking group and wherein the alkyl (alpha-substituted)acrylate monomers are represented by the following structures:
• and wherein:
• Z is a dipole group selected from the group of cyano, sulfone, sulfoxide, pyrrolidonyl, furfuryl, tetrahydrofurfuryl, acetyl, acetylenyl, phenylacetylenyl, 2,2,2-trifluoroethyl, nitrile, cyanoethyl, methoxy, acetate, carbonate, diphenyl, dinitrile, difluoromethyl, dichloroethyl, trifluoromethyl, trichloromethyl, formyl, trifluoroacetyl, phenylketone, ester, cyanoester, acetamide, trifluoroacetamide, amine, alkylamine, dialkylamine, nitro, hydroxyl, ketone, ether, trifluoromethyl ether, phenylethyl, halide, salts thereof, and combinations thereof;
• n is 1-3;
• p is 0-3;
• R1 is H or methyl;
• and
• R2 is a divalent organic linking group, optionally containing oxygen, nitrogen, sulfur, or silicon atoms and optionally containing pendant Z groups.

A high energy density capacitor comprising an organic polymeric dielectric material having a dielectric constant of at least about 10;

• wherein the organic polymeric dielectric material comprises polymerized alkyl (alpha-substituted)acrylate monomers having at least one dipole group;
• wherein when the monomers are polymerized, the dipole group is attached to the main polymeric chain through a heteroatom-containing linking group and wherein the alkyl (alpha-substituted)acrylate monomers are represented by the following structures:
• and wherein:
• Z is a dipole group selected from the group of cyano, sulfone, sulfoxide, pyrrolidonyl, furfuryl, tetrahydrofurfuryl, acetyl, acetylenyl, phenylacetylenyl, 2,2,2-trifluoroethyl, nitrile, cyanoethyl, methoxy, acetate, carbonate, diphenyl, dinitrile, difluoromethyl, dichloroethyl, trifluoromethyl, trichloromethyl, formyl, trifluoroacetyl, phenylketone, ester, cyanoester, acetamide, trifluoroacetamide, amine, alkylamine, dialkylamine, nitro, hydroxyl, ketone, ether, trifluoromethyl ether, phenylethyl, halide, salts thereof, and combinations thereof;
• n is 1-3;
• p is 0-3;
• R1 is H or methyl;
• and
• R2 is a divalent organic linking group optionally containing oxygen, nitrogen, sulfur, or silicon atoms and optionally containing pendant Z groups.