The Utilization of Isolation Chromophore in an "A3+B2" Type Second‐Order Nonlinear Optical Hyperbranched Polymer. Issue 13 (27th May 2013)

• Record Type: Journal Article
• Authors: Wu, Wenbo; Ye, Cheng; Qin, Jingui; Li, Zhen
• Is Part Of: Macromolecular rapid communications. Volume 34:Issue 13(2013:Jul.)
• Page Start: 1072
• Page End: 1079
• Publication Date: 2013-05-27
• Subjects: Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201300226
• Languages: English
• ISSNs: 1022-1336

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>In this paper, a new nonlinear optical (NLO) hyperbranched polymer <bold>P1</bold> is designed and synthesized successfully through one‐pot "A₃+B₂" approach via a simple Sonogashira coupling reaction, in which isolation chromophore is introduced to improve its comprehensive performance such as NLO activity, optical transparency, and stability. For comparison, its analogs, <bold>P2</bold> and <bold>P3</bold>, just containing one type of chromophore, are also prepared. Although <bold>P1</bold> cannot be well poled under our test conditions, its NLO coefficient is still much higher than its analogs <bold>P2</bold>, <bold>P3, </bold> and the linear polyaryleneethynylene <bold>P4</bold>, which also contains isolation chromophore, indicating the advantages of isolation chromophore and the three‐dimensional (3D) spatial isolation from the highly branched structure in the NLO field.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh191m0dgg" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>