Polymerizable mesophases based on substituted unsaturated carbox

Details Polymerizable mesophases based on substituted unsaturated carbox Polymerizable mesophases based on substituted unsaturated carbox

1997-04-08

1999-05-18

Krass, Frederick

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

562426, 562430, 562442, 562443, 562449, 562450, 562456, 562495, 562507, 562510, 562555, 562556, 562574, 562583, 562595, 562596, 562602, 562605, 562579, 562582, 562586, 526242, 526243, 526245, 526246, 526247, 526248, 526277, 526278, 526279, 526286, 526287, 526288, 526289, 526291, 5262921, 5262922, 5262923, 52629295, 526293, 526294, 526295, 526301, 526304, 526308, 526309, 526314, 526318, 5263183, 526312, 556437, 560146, 560193, 560195, 560196, 560197, 560201, 560205, C07C57/02;57/18

Patent

active

059051272

ABSTRACT:
Mesogens are provided based on substituted unsaturated carboxylic acids such as acrylic and methacrylic acid. Substitution of a variety of hydrophobic tails onto the carboxylic acid or acid derivative via the vinyl carbon proximal to the carbonyl of the carboxylic acid results in mesogens that are capable of forming thermotropic and single-phase lyotropic mesophases over a broad range of compositions. The mesophases can be polymerized to lock in the ordered phases.

REFERENCES:
patent: 5171765 (1992-12-01), Jones et al.
"Syntheses, Polymerization and Characterization of Novel Semifluorinated Methacrylates", Jariwala et al, Macromolecules 5129, pp. 5129-5136, 1993.
"New Hydrophobic and Liquid-Crystalline Fluoroalkyl Ether Derivatives", Jariwala et al, Macromolecules 6352, pp. 6352-6353, 1991.
"Polymerized Lyotrophic Liquid Crystals as Contact Lens Materials", Anderson et al, A176 PHYSICA 151, 1991.
Chemical Abstracts 100:34206, "Nitroarylation of Alkenes by Aryldiazonium Salts in the Presence of Sodium Nitrate", Apr. 1983.
Printout and Structure Diagram for Registry No. 88382-52-9, Apr. 1998.

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