Novel optical material: Polyarylates with azomethine side‐chain groups

Abstract

A number of NLO polymers were obtained, in which aromatic polyester is a matrix and the chromophores are incorporated into the form of a side chain. Special monomers are based on 2,2-bis(3-amino-4-hydroxyphenyl)propane; they contain an azomethine bond and various electron-acceptor groups (nitro, cyanide, and fluoride) as substituents in the side-chain aromatic ring. The effect of the type of the electronacceptor substituent, its substitution position in the aromatic ring with respect to the azomethine bond, and special monomer concentration on the optical, mechanical, and thermal properties of the whole system was studied.

Preparation and characterization of the soluble NLO polyarylates with enhanced electro-optic properties

“…So the traditional polyaryla tes are hard to form thin films through spin coat me thod, and seldom applied to NLO materials for their poor solubility. To the best of our knowledge, just Irmi na Zadro na had studied in this area, but those poly mers usually exhibited very low r 33 values [10][11][12].…”

Synthesis and characterization of novel polyarylates bearing NLO moieties

“…The present study is the continuation of our research on polyarylates with nonlinear-optical (NLO) properties. [1][2][3][4][5][6] In the light of the recent communications in the literature, we know that polymeric NLO systems are composed of two components: a chromophore and polymer. To obtain the required NLO properties, these components must be correctly connected, either in the chemical or in the physical way.…”