Multifunctional polyurethanes synthesized from different triarylamine units with electrochromic, photogeneration, memory storage and sensing properties. (10th December 2018)

• Record Type: Journal Article
• Authors: Zhang, Xu; Lu, Qingyi; Yang, Caiyu; Zhao, Shuo; Wang, Yan; Zhang, Wei; Niu, Haijun; Zhao, Ping; Wang, Wen; Fan, Jinghe
• Is Part Of: New journal of chemistry. Volume 43:Number 3(2019)
• Page Start: 1177
• Page End: 1185
• Publication Date: 2018-12-10
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c8nj05159c
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Herein, we report three multifunctional polyurethane materials, which exhibit excellent electrochromic, photoelectric, memory and sensing properties, and also have good mechanical properties. Abstract : In this work, a series of multifunctional polyurethane (PU) materials containing three kinds of different triarylamine (TAA) units was prepared. These polymers show good solubility in common organic solvents and excellent thermal stability under a N2 atmosphere. The PU films show reversible color changes with high contrast ratios and electrochromic stability. Moreover, they have good memory storage performance. The ON/OFF current ratio is about two orders of magnitude. Meanwhile, they can be used as detectors for 2, 4, 6-trinitrotoluene (TNT) and 2, 4, 6-trinitrophenol (TNP). The polymer solutions rapidly exhibit fluorescence-quenching phenomena when exposed to trace amounts of TNT and TNP. The PU films also have mechanical properties that make them suitable for use in stretchable devices.