New smart materials: molecular simulation of nonlinear optical chromophore-containing polypeptides and liquid crystalline siloxanes

1993 ◽  
Author(s):  
Ruth Pachter ◽  
Soumya S. Patnaik ◽  
Robert L. Crane ◽  
W. Wade Adams
Keyword(s):  
Molecular Simulation ◽  
Smart Materials ◽  
Liquid Crystalline ◽  
Nonlinear Optical ◽  
Nonlinear Optical Chromophore

scholarly journals A Highly Versatile Polymer Network Based on Liquid Crystalline Dendrimers

2021 ◽  
Vol 22 (11) ◽  
pp. 5740
Author(s):  
Ramón Cervera-Procas ◽  
José-Luis Serrano ◽  
Ana Omenat
Keyword(s):  
Smart Materials ◽  
Liquid Crystalline ◽  
Organic Dyes ◽  
Polymer Network ◽  
Viscoelastic Behavior ◽  
Diverse Range ◽  
Polymeric Systems ◽  
System A ◽  
Porous Microstructure ◽  
Solvent Molecules

Highly functional macromolecules with a well-defined architecture are the key to designing efficient and smart materials, and these polymeric systems can be tailored for specific applications in a diverse range of fields. Herein, the formation of a new liquid crystalline polymeric network based on the crosslinking of dendrimeric entities by the CuI-catalyzed variant of the Huisgen 1,3-dipolar cycloaddition of azides and alkynes to afford 1,2,3-triazoles is reported. The polymeric material obtained in this way is easy to process and exhibits a variety of properties, which include mesomorphism, viscoelastic behavior, and thermal contraction. The porous microstructure of the polymer network determines its capability to absorb solvent molecules and to encapsulate small molecules, like organic dyes, which can be released easily afterwards. Moreover, all these properties may be easily tuned by modifying the chemical structure of the constituent dendrimers, which makes this system a very interesting one for a number of applications.

One dimensional polymeric photonic crystal doped with second-order nonlinear optical chromophore

2009 ◽  
Author(s):  
Azusa Inoue ◽  
Shin-ichiro Inoue ◽  
Shiyoshi Yokoyama ◽  
Keisuke Kojima ◽  
Kei Yasui ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Nonlinear Optical ◽  
Second Order ◽  
One Dimensional ◽  
Nonlinear Optical Chromophore

Synthesis of a novel organic nonlinear optical chromophore and the Testing for µg β Value

2007 ◽  
Vol 3 (1) ◽  
pp. 50-53
Author(s):  
Li-kun Han ◽  
Ya-dong Jiang ◽  
Wei Li ◽  
Yuan Cai
Keyword(s):  
Nonlinear Optical ◽  
Nonlinear Optical Chromophore

A comparative study of side chain liquid crystalline polymers and their monomers designed for nonlinear optical applications

1991 ◽  
Vol 6 (3) ◽  
pp. 604-609 ◽  
Author(s):  
R.B. Findlay ◽  
T.J. Lemmon ◽  
A.H. Windle
Keyword(s):  
Transition Temperature ◽  
Liquid Crystalline ◽  
Nonlinear Optical ◽  
Liquid Crystalline Polymers ◽  
Significant Degree ◽  
Side Chain ◽  
Crystalline Polymers ◽  
Chemical Structures ◽  
Optical Applications ◽  
Nonlinear Optical Applications

Characterizations of side chain liquid crystalline polymers and their monomers point toward chemical structures and processing techniques which optimize their suitability for nonlinear optical applications. Polymers with methacrylate backbones and nitrostilbene or nitrobiphenyl side groups are studied; they tend to form smectic phases, but no solid crystallinity. By copolymerizing with nonmesogenic backbone units, the smectic-isotropic transition temperature can be controlled and may fall below the glass transition temperature. There is evidence for a significant degree of pretransitional alignment due to the surface fields, and mesogen ordering perpendicular to flow-induced backbone alignment. Very rapid cooling can suppress the highly scattering polydomain smectic phase.

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