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Synthesis and structural characterization of a new polysiloxane with second‐order nonlinear optical effect
Author(s) -
Li Zhen,
Qin Jingui,
Yang Zhou,
Ye Cheng
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20942
Subject(s) - hydrosilylation , chromophore , differential scanning calorimetry , polymer , polymer chemistry , side chain , gel permeation chromatography , indole test , materials science , characterization (materials science) , second harmonic generation , chemistry , organic chemistry , composite material , optics , nanotechnology , laser , physics , thermodynamics , catalysis
A new polysiloxane ( P2 ), with a high density of the indole‐based chromophore and carbazolyl side groups, was prepared. Thus a polysiloxane ( P1 ), with indole and carbazolyl groups as side chains, was first synthesized through a hydrosilylation reaction, and then the post‐azo coupling of p ‐nitrobenzenediazonium fluoroborate toward the indole ring gave the mulifunctional indole‐based chromophore‐functionalized polysiloxane ( P2 ). Molecular structural characterization for the polymers was determined by 1 H‐NMR, IR, and UV–visible spectra, gel permeation chromatography, and differential scanning calorimetry. The polymers were easily soluble in common organic solvents. The poled film of P2 revealed a resonant d 33 value of 27 pm/V by second‐harmonic generation measurements. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 769–774, 2004