Surface graft polymerization of conducting polyaniline on waterborne poyurethane‐urea film and its phenol sensing. Issue 3 (8th May 2012)

• Record Type: Journal Article
• Authors: Son, Su‐Jin; Kim, Han‐Seong; Lee, Dong‐Jin; Lee, Young‐Hee; Kim, Han‐Do
• Is Part Of: Journal of applied polymer science. Volume 127:Issue 3(2013:Feb. 05)
• Page Start: 1643
• Page End: 1652
• Publication Date: 2012-05-08
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.37529
• Languages: English
• ISSNs: 0021-8995

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Waterborne polyurethane‐ureas (pristine WBPUs: WBPU‐19 and WBPU‐24, fixed soft segment content: 60 wt %) containing dimethylol propionic acid (DMPA)/ethylene diamine (EDA) contents (19/16.8 and 24/11.4 mol %) were prepared. The polyaniline (PANI)‐<italic>graft</italic>‐WBPU (PANI‐<italic>graft</italic>‐WBPU) films were prepared by oxidative graft polymerization of aniline on the surface layer of WBPU films. This study focused on the effects of reaction conditions (concentrations/treating times/temperatures of aniline and APS) and DMPA content on the %grafting, conductivity, and mechanical properties of PANI‐<italic>graft</italic>‐WBPU films. To obtain the maximum %grafting (PANI‐<italic>graft</italic>‐WBPU‐19: 6.2, and PANI‐<italic>graft</italic>‐WBPU‐24: 7.4) and conductivity (PANI‐<italic>graft</italic>‐WBPU‐19: 3.6 × 10<sup>−2</sup>S/cm, and PANI‐<italic>graft</italic>‐WBPU‐24: 4.7 × 10<sup>−2</sup>S/cm), the optimum concentrations/treating times/temperatures of aniline and APS, were found to be 0.35<italic>M</italic>/10 min/25°C and 0.2<italic>M</italic>/10 min/0°C, respectively. The tensile strength of film samples was found to be increased in the order of PANI‐<italic>graft</italic>‐WBPU‐19>pristine WBPU‐19>PANI‐<italic>graft</italic>‐WBPU‐24>pristine WBPU‐24. The PANI‐<italic>graft</italic>‐WBPU‐19 (%grafting: 6.2) films on exposure to 0–10, 000 ppm phenol solutions showed a well‐defined response behavior, demonstrating high promise for application in aqueous phenol sensors. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013</p> </abstract>