US4779961A
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Polymers with pendant side chains exhibiting non-linear optical response
Assignee: Hoechst Celanese Chemical Co
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Filing: 1987-06-05
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Granted: 1988-10-25
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Expires: 2007-06-05
Abstract
Abstract This invention provides novel polyvinyl polymers with pendant side chains which exhibit nonlinear optical response. The polymers have utility as a transparent optical component of optical switch or light modulator devices. An invention polymer is illustrated by a side chain liquid crystalline polymer of the following structure: ##STR1##
Inventors
- 👤 Ronald N. DeMartino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:59
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F20/36; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
50 words
A polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR12## where P' is a polymerized main chain vinyl monomeric structure; m is an integer of at least 3; and S' is a flexible spacer group having a linear chain length of between about 3-20 atoms.
Claim 2
Dependent Claim
50 words
A polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR12## where P' is a polymerized main chain vinyl monomeric structure; m is an integer of at least 3; and S' is a flexible spacer group having a linear chain length of between about 3-20 atoms.
Claim 3
Dependent Claim
18 words
A polymer in accordance with claim 1 wherein the molecular weight of the polymer is between about 1500-500,000.
Claim 4
Dependent Claim
23 words
A polymer in accordance with claim 1 wherein the recurring monomeric units comprise at least 10 weight percent of the total polymer weight.
Claim 5
Dependent Claim
19 words
A polymer in accordance with claim 1 wherein the polymer has a glass transition temperature between about 40°-120° C.
Claim 6
Dependent Claim
46 words
A polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR13## where R is hydrogen or a C 1 -C 4 alkyl group; m is an integer of at least 3; and n is an integer with a value between about 2-20.
Claim 7
Dependent Claim
46 words
A polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR13## where R is hydrogen or a C 1 -C 4 alkyl group; m is an integer of at least 3; and n is an integer with a value between about 2-20.
Claim 8
Dependent Claim
18 words
A polymer in accordance with claim 5 wherein the molecular weight of the polymer is between about 2000-200,000.
Claim 9
Dependent Claim
23 words
A polymer in accordance with claim 5 wherein the recurring monomeric units comprise at least 10 weight percent of the total polymer weight.
Claim 10
Dependent Claim
19 words
A polymer in accordance with claim 5 wherein the polymer has a glass transition temperature between about 40°-120° C.
Claim 11
Dependent Claim
15 words
A polymer in accordance with claim 5 wherein the polymer exhibits thermotropic liquid crystalline properties.
Claim 12
Dependent Claim
17 words
A polymer in accordance with claim 5 wherein the polymer contains recurring copolymerized vinyl halide monomeric structures.
Claim 13
Dependent Claim
16 words
A polymer in accordance with claim 5 wherein the polymer contains recurring copolymerized styrene monomeric structures.
Claim 14
Dependent Claim
19 words
A polymer in accordance with claim 5 wherein the R group in the structural formula is hydrogen or methyl.
Claim 15
Dependent Claim
57 words
A nonlinear optical medium comprising a centrosymmetric configuration of polymer molecules characterized by a recurring monomeric unit corresponding to the formula: ##STR14## where P' is a polymerized main chain vinyl monomeric structure; m is an integer of at least 3; and S' is a flexible spacer group having a linear chain length of between about 3-20 atoms.
Claim 16
Dependent Claim
57 words
A nonlinear optical medium comprising a centrosymmetric configuration of polymer molecules characterized by a recurring monomeric unit corresponding to the formula: ##STR14## where P' is a polymerized main chain vinyl monomeric structure; m is an integer of at least 3; and S' is a flexible spacer group having a linear chain length of between about 3-20 atoms.
Claim 17
Dependent Claim
53 words
A nonlinear optical medium comprising a centrosymmetric configuration of polymer molecules characterized by a recurring monomeric unit corresponding to the formula: ##STR15## where R is hydrogen or a C 1 -C 4 alkyl group; m is an integer of at least 3; and n is an integer with a value between about 2-20.
Claim 18
Dependent Claim
53 words
A nonlinear optical medium comprising a centrosymmetric configuration of polymer molecules characterized by a recurring monomeric unit corresponding to the formula: ##STR15## where R is hydrogen or a C 1 -C 4 alkyl group; m is an integer of at least 3; and n is an integer with a value between about 2-20.
Claim 19
Dependent Claim
33 words
A nonlinear optical medium in accordance with claim 14 wherein the medium exhibits third order nonlinear optical susceptibility X.sup.(3) of at least about 1×10 -12 esu as measured at 1.91 μm excitation wavelength.
Claim 20
Dependent Claim
57 words
A nonlinear optical medium comprising a noncentrosymmetric configuration of polymer molecules characterized by a recurring monomeric unit corresponding to the formula: ##STR16## where P' is a polymerized main chain vinyl monomeric structure; m is an integer of at least 3; and S' is a flexible spacer group having a linear chain length of between about 3-20 atoms.
Claim 21
Dependent Claim
57 words
A nonlinear optical medium comprising a noncentrosymmetric configuration of polymer molecules characterized by a recurring monomeric unit corresponding to the formula: ##STR16## where P' is a polymerized main chain vinyl monomeric structure; m is an integer of at least 3; and S' is a flexible spacer group having a linear chain length of between about 3-20 atoms.
Claim 22
Dependent Claim
53 words
A nonlinear optical medium comprising a noncentrosymmetric configuration of polymer molecules characterized by a recurring monomeric unit corresponding to the formula: ##STR17## where R is hydrogen or a C 1 -C 4 alkyl group; m is an integer of at least 3; and n is an integer with a value between about 2-20.
Claim 23
Dependent Claim
53 words
A nonlinear optical medium comprising a noncentrosymmetric configuration of polymer molecules characterized by a recurring monomeric unit corresponding to the formula: ##STR17## where R is hydrogen or a C 1 -C 4 alkyl group; m is an integer of at least 3; and n is an integer with a value between about 2-20.
Claim 24
Dependent Claim
21 words
A nonlinear optical medium in accordance with claim 17 wherein the noncentrosymmetric configuration of molecules in the medium is external field-induced.
Claim 25
Dependent Claim
32 words
A nonlinear optical medium in accordance with claim 17 wherein the medium exhibits second order nonlinear susceptibility X.sup.(2) of at least about 1×10 -6 esu as measured at 1.91 μm excitation wavelength.
Claim 26
Dependent Claim
70 words
An optical switch or light modulator device with an organic nonlinear optical component consisting of a transparent solid medium comprising a polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR18## where P' is a polymerized main chain vinyl monomeric structure; m is an integer of at least 3; and S' is a flexible spacer group having a linear chain length of between about 3-20 atoms.
Claim 27
Dependent Claim
70 words
An optical switch or light modulator device with an organic nonlinear optical component consisting of a transparent solid medium comprising a polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR18## where P' is a polymerized main chain vinyl monomeric structure; m is an integer of at least 3; and S' is a flexible spacer group having a linear chain length of between about 3-20 atoms.
Claim 28
Dependent Claim
66 words
An optical switch or light modulator device with an organic nonlinear optical component consisting of a transparent solid medium comprising a polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR19## where R is hydrogen or a C 1 -C 4 alkyl group; m is an integer of at least 3; and n is an integer with a value between about 2-20.
Claim 29
Dependent Claim
66 words
An optical switch or light modulator device with an organic nonlinear optical component consisting of a transparent solid medium comprising a polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR19## where R is hydrogen or a C 1 -C 4 alkyl group; m is an integer of at least 3; and n is an integer with a value between about 2-20.
References Cited (Backward Citations)
No citation records indexed.
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