logo

Side-chain polymers bearing azo-moieties for nonlinear optics

If you want to confirm some technical details before you order,
just need to send a message or e-mail: [email protected].
Then our professional sales staff will contact you within 2 hours.

Effect of thermal crosslink on the temporal stability of .

N2 - We synthesized the crosslinkable second-order nonlinear optical (NLO) side chain copolymer for studying the effect of temperature on the electro-optic effect. Heterocyclic azo chromophore was synthesized to be bound to α-methylstyrene polymer backbone.

Synthesis and characterization of side-chain poly .

Acknowledgements. This work was partially achieved by means of PN2 CNMP Parteneriate 71-029 “Nabieco” and 31-056 “Biopolact” projects (financed by the Romanian Ministry of Education & Research) and PN-II-ID-2008-2 “Macromolecular materials containing chromophores” project (financed by Romanian National Council for Scientific Research in Higher Education).

Third-Order Nonlinear Optical Response in Organic .

Synthesis, Properties, and Redox Behavior of Tetracyanobutadiene and Dicyanoquinodimethane Chromophores Bearing Two Azulenyl Substituents. The Journal ... Highly Efficient Polyenic Chromophores into Maleimide-Containing Side-Chain Polymers for Electro-Optics. Macromolecules ... Relationships in Third-Order Nonlinear Optical Polymers: Third ...

(PDF) Synthesis and characterization of side-chain poly .

Academia.edu is a platform for academics to share research papers.

Some new design strategies for second-order nonlinear .

Some new design strategies for second-order nonlinear optical polymers and dendrimers. ... bearing one or two reactive groups. Relatively, in the side-chain NLO polymers, ... in which the fluorene moieties were almost perpendicular to the two phenyl rings of the azo moieties, acting as bulky IGs.

Polymers | Free Full-Text | Polymers and Dyes .

Amongst functional macromolecules, the combination of polymers and dyes is a research field of great potential with regard to high-performance materials. Accordingly, colored polymers have become increasingly important as materials for miscellaneous technical applications in recent years while also being a major part of everyday life. For instance, dye-containing polymers are nowadays widely ...

A. Petris - Academia.e

A. Petris studies Executive Function, Depression (Psychology), and Clinical Biochemistry.

New hyperbranched polyaryleneethynylene containing .

New hyperbranched polyaryleneethynylene containing azobenzene chromophore moieties in the main chain: facile synthesis, large optical nonlinearity and high thermal stability†. Zhong'an Li a, Wenbo Wu a, Cheng Ye b, Jingui Qin a and Zhen Li * a a Department of Chemistry, Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Wuhan University, Wuhan 430072, China.

US5286803A - Coumarin dyes and side-chain coumarin dye .

Coumarin dyes such as alkylaminocoumarincarboxamides which have functional hydroxyl groups or which are chemically attached to vinyl monomers such as methacrylic acid. The dyes which are chemically attached to vinyl monomers can be copolymerized, e.g. with acrylic monomers to produce a coumarin dye-containing polymer. The dyes which have functional hydroxyl groups can be reacted with an ...

Dr. Ioan Dancus Profile - spiedigitallibrary.o

Side-chain polymers bearing azo-moieties for nonlinear optics F. Adriana Nicolescu , V. Victor Jerca , Ioan Dancus , Adrian Petris , Valentin Vlad , D. Sorin Vasilescu , D. Mircea Vuluga

Synthesis and Processing of Improved Organic Second-Order .

A Novel Class of Nonlinear Optical Side-Chain Polymer: Polyquinolines with Large Second-Order Nonlinearity and Thermal Stability. Chemistry of Materials 1996, 8 (3) , 607-609. DOI: 10.1021/cm9505916. Thibaud Coradin and, René Clément, , Pascal G. Lacroix, , Keitaro Nakatani.

Side-chain polymers bearing azo-moieties for nonlinear .

Request PDF on ResearchGate | Side-chain polymers bearing azo-moieties for nonlinear optics | In this paper we present a series of side-chain polymers bearing original azo-moieties, namely: poly ...

Second harmonic generation and thermally stimulated .

The relaxation of electric field‐induced polar orientation in novel side and main chain polymers was measured by simultaneous second harmonic generation and thermally stimulated discharge current techniques. Using this combination of experiments, individual microscopic relaxation mechanisms could be discriminated and identified. The relaxation of a polymer bearing polar chromophores on a ...

Side-chain polymers bearing azo-moieties for nonlinear opti

F. Adriana Nicolescu, V. Victor Jerca, Ioan Dancus, Adrian Petris, Valentin I. Vlad, D. Sorin Vasilescu, and D. Mircea Vuluga "Side-chain polymers bearing azo-moieties for nonlinear optics", Proc. SPIE 7838, Optics and Photonics for Counterterrorism and Crime Fighting VI and Optical Materials in Defence Systems Technology VII, 78381B (12 ...

EP0482985A1 - Cross-linkable polymer for use in non-linear .

Crosslinking polymer capable of being employed in nonlinear optics, the polymer consisting of a backbone to which side chains are attached; a first chain provides the polymer with an amorphous character, the backbone consisting of polyacrylic or polystyrene or polysiloxane, a second side chain is capable of producing nonlinear effects in optics and ends in a group which can be crosslinked ...

Linear and Nonlinear Optics of Organic Materials II .

PROCEEDINGS VOLUME 4798 Linear and Nonlinear Optics of Organic Materials II. Editor(s): Manfred Eich; Mark G. Kuzyk *This item is only available on the SPIE Digital Library. Volume Details. Volume Number: 4798 Date Published: 18 December 2002 Table of Contents ...

Synthesis and nonlinear optical properties of side chain .

Synthesis and nonlinear optical properties of side chain liquid crystalline polymers containing azobenzene push–pull chromophores ... Azobenzene monomeric precursors bearing piperazine as donor moiety with different withdrawing groups and derived side chain polymethacrylates have been prepared and characterized. ... resulted in a significant ...

Synthesis, Spectral and Thermal Characterization of Some .

Synthesis, Spectral and Thermal Characterization of Some Azo-Polymers Containing Acrylate Derivatives Mahmut Gür 1 *, Hasan Kocaokutgen 2, Fatma Kandemirli 3, Sevil Özkinali 5 and Zekeriya Yerlikaya 4. 1 Department of Forest Industrial Engineering, Faculty of Forestry, Kastamonu University, Kastamonu, Turkey. 2 Department of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayıs University ...

Synthesis and characterization of side-chain maleimide .

Abstract. Four side-chain maleimide-styrene polymers have been synthesized from maleimide-alt-styrene copolymer (MASt) and some original azo-moieties using polymer analogous reactions.The structures have been obtained with good yields; remarkably, they showed a high chromophore load, up to ~100%.

Testing of the ways for synthesis of new nonlinear optical .

1. Introduction. A predominant number of researches on polymer materials exhibiting the second-order nonlinear optical (NLO) activity dealt with guest–host systems or side-chain polymers where chromophore groups in side chains are covalently attached to the backbone (, , , , , , and references therein).The benefits of the latter class of polymers are generally recognized due to a number of ...

Highly stable rigid main-chain nonlinear optical polymers .

Highly stable rigid main-chain nonlinear optical polymers with nematic phase: Effect of liquid-crystalline phase on nonlinear optical response Authors K. Y. Sandhya,