Synthesis and properties of novel crosslinkable second-order nonlinear optical polymers based on 2,3,4,5,6-pentafluorostyrene

• Published in: Polymer international 2004-08, Vol.53 (8), p.1106-1112
• Main Authors: Wang, Yao, Wang, Xinjiao, Chuai, Xiaohong, Fu, Na, Cui, Zhanchen, Yi, Maobin, Zhang, Daming, Yang, Bai
• Format: Article
• Language: English
• Subjects: Applied sciences; crosslinkable materials; electro-optical coefficient; Exact sciences and technology; optical loss; Physicochemistry of polymers; Polymer industry, paints, wood; second-order nonlinear optics; Technology of polymers; thermal stability
• ISSN: 0959-8103; 1097-0126
• DOI: 10.1002/pi.1504

Two crosslinkable second‐order nonlinear optical polymers were prepared by copolymerization of 2,3,4,5,6‐pentafluorostyrene, styrene (St), glycidyl methacrylate (GMA) and 1‐(4‐nitrophenyl)‐2‐(4‐{[2‐(methacryloyloxy) ethyl] ethylamino}‐phenyl) diazene (DR1M) via the sealed‐tube reaction technique. These polymers were characterized using 1H, 13C and 19F NMR spectroscopy, gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The crosslinkable polymers have high molecular weights, good organosolubility, excellent film‐forming properties and high glass transition (106–110 °C) and thermal decomposition temperatures (290–350 °C) after being crosslinked. Furthermore, the polymer films possess not only high values (12–16 pm V−1) of electro‐optical coefficient (r33) at 1.3 µm wavelength but also low optical loss (1.7 dB cm−1) at 1.55 µm wavelength, which is of interest for applications in electro‐optical devices. Copyright © 2004 Society of Chemical Industry