Multilayer second-order nonlinear optical films of head-to-head, mainchain chromophoric polymers
First Claim
1. A multilayer polarized film, which comprises at least one bilayer of two monomolecular layers of water-insoluble, head-to-head, mainchain, amphophilic, chromophoric polymers, one monomolecular layer A being formed of a polymer A and the other monomolecular layer B being formed of a polymer B, polymers A and B independently having two or more sequences of bridged chromophore units having the formulas ##STR8## wherein:
- C and C'"'"' are chromophores of polymers A and B, respectively, wherein each chromophore has an electron accepting end represented by an arrow head, an electron donating end represented by an arrow tail, and a rigid connecting group which contains delocalized H-electrons and which is connected between the electron accepting end and the electron donating end of the chromophore;
BLA is a hydrophobic (lipophilic) bridging group extending between and attached to the electron accepting ends of two C'"'"' chromophores;
BLD is a hydrophobic (lipophilic) bridging group, extending between and attached to the electron donating ends of two C chromophores;
BHA is a hydrophilic bridging group extending between and attached to the electron accepting ends of two C chromophores;
BHD is a hydrophilic bridging group, extending between and attached to the electron donating ends of two C'"'"' chromophores;
y1 and y2 are degrees of polymerization of polymers A and B, respectively, which independently range from a minimum value of 2 to a maximum value greater than 300.
1 Assignment
0 Petitions
Accused Products
Abstract
Second-order nonlinear optical polymeric films, including alternating monlecular layers of two head-to-head, mainchain, amphophilic, chromophoric polymers, one polymer having the electron donating end of the chromophore attached to hydrophilic groups, and the other polymer having the electron donating end of the chromophore attached to hydrophobic groups, and methods of fabricating the films for use in optonics.
-
Citations
15 Claims
-
1. A multilayer polarized film, which comprises at least one bilayer of two monomolecular layers of water-insoluble, head-to-head, mainchain, amphophilic, chromophoric polymers, one monomolecular layer A being formed of a polymer A and the other monomolecular layer B being formed of a polymer B, polymers A and B independently having two or more sequences of bridged chromophore units having the formulas ##STR8## wherein:
- C and C'"'"' are chromophores of polymers A and B, respectively, wherein each chromophore has an electron accepting end represented by an arrow head, an electron donating end represented by an arrow tail, and a rigid connecting group which contains delocalized H-electrons and which is connected between the electron accepting end and the electron donating end of the chromophore;
BLA is a hydrophobic (lipophilic) bridging group extending between and attached to the electron accepting ends of two C'"'"' chromophores; BLD is a hydrophobic (lipophilic) bridging group, extending between and attached to the electron donating ends of two C chromophores; BHA is a hydrophilic bridging group extending between and attached to the electron accepting ends of two C chromophores; BHD is a hydrophilic bridging group, extending between and attached to the electron donating ends of two C'"'"' chromophores; y1 and y2 are degrees of polymerization of polymers A and B, respectively, which independently range from a minimum value of 2 to a maximum value greater than 300. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- C and C'"'"' are chromophores of polymers A and B, respectively, wherein each chromophore has an electron accepting end represented by an arrow head, an electron donating end represented by an arrow tail, and a rigid connecting group which contains delocalized H-electrons and which is connected between the electron accepting end and the electron donating end of the chromophore;
-
9. A multilayer structure, which comprises a substrate and a multilayer polarized film disposed on the substrate, wherein said multilayer polarized film comprises at least one bilayer of two monomolecular layers of water-insoluble, head-to-head, mainchain, amphophilic, chromophoric polymers which are successively deposited on the substrate by the alternating, Y-type Langmuir-Blodgett process, one monomolecular layer A being formed of a polymer A and the other monomolecular layer B being formed of a polymer B, polymers A and B independently having two or more sequences of bridged chromophore units having the formulas ##STR15## wherein:
- C and C'"'"' are chromophores of polymers A and B, respectively, wherein each chromophore has an electron accepting end represented by an arrow head, an electron donating end represented by an arrow tail, and a rigid connecting group which contains delocalized n-electrons and which is connected between the electron accepting end and the electron donating end of the chromophore;
BLA is a hydrophobic (lipophilic) bridging group, extending between and attached to the electron accepting ends of two C'"'"' chromophores; BLD is a hydrophobic (lipophilic) bridging group, extending between and attached to the electron donating ends of two C chromophores; BHA is a hydrophilic bridging group, extending between and attached to the electron accepting ends of two C chromophores; BHD is a hydrophilic bridging group, extending between and attached to the electron donating ends of two C'"'"' chromophores; y1 and y2 are degrees of polymerization of polymers A and B, respectively, which independently range from a minimum value of 2 to a maximum value greater than 300. - View Dependent Claims (10, 11, 12, 13)
- C and C'"'"' are chromophores of polymers A and B, respectively, wherein each chromophore has an electron accepting end represented by an arrow head, an electron donating end represented by an arrow tail, and a rigid connecting group which contains delocalized n-electrons and which is connected between the electron accepting end and the electron donating end of the chromophore;
-
14. A multilayer polarized film, which comprises at least one bilayer of two monomolecular layers of water-insoluble, head-to-head, mainchain, amphophilic, chromophoric polymers, one monomolecular layer A being formed of a polymer A and the other monomolecular layer B being formed of a polymer B, polymers A and B independently having two or more sequences of bridged chromophore units having the formulas ##STR16## wherein:
- C and C'"'"' are chromophores of polymers A and B, respectively, wherein each chromophore has an electron accepting end represented by an arrow head, an electron donating end represented by an arrow tail, and a rigid connecting group which contains delocalized n-electrons and which is connected between the electron accepting end and the electron donating end of the chromophore;
BLA is a hydrophobic (lipophilic) bridging group extending between and attached to the electron accepting ends of two C'"'"' chromophores; BLD is a hydrophobic (lipophilic) bridging group, extending between and attached to the electron donating ends of two C chromophores; BH1 is a hydrophilic bridging group, extending between and attached to the electron accepting ends of two C chromophores; BHD is a hydrophilic bridging group, extending between and attached to the electron donating ends of two C'"'"' chromophores; y1 and y2 are degrees of polymerization of polymers A and B, respectively, which independently range from a minimum value of 2 to a maximum value greater than 300; said multilayer polarized film having a noncentrosymmetric conformation attained through successive self-assembly of polymers A and B on a surface, said noncentrosymmetric conformation being evidenced by a second-order nonlinear optical property, a piezoelectric property or a pyroelectric property. - View Dependent Claims (15)
- C and C'"'"' are chromophores of polymers A and B, respectively, wherein each chromophore has an electron accepting end represented by an arrow head, an electron donating end represented by an arrow tail, and a rigid connecting group which contains delocalized n-electrons and which is connected between the electron accepting end and the electron donating end of the chromophore;
Specification