The POSS side chain epoxy nanocomposite: Synthesis and thermal properties

✍ Scribed by Yie-Chan Chiu; Linawati Riang; I-Chen Chou; Chen-Chi M. Ma; Chin-Lung Chiang; Cheng-Chien Yang

• Book ID: 105339336
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 880 KB
• Volume: 48
• Category: Article
• ISSN: 0887-6266
• DOI: 10.1002/polb.21933

✦ Synopsis

Abstract

The IPI‐POSS‐modified epoxy resin (IPEP) was prepared from isocyanato‐propyldinethylsilyl‐isobutyl‐POSS (IPI‐POSS) and diglycidyl ether of bisphenol A epoxy resin. The steric hindrance of the IPEP bulky POSS side chain improved the curing activation energies. The POSS particles sizes were about 2–3 nm and dispersed uniformly. At lower IPEP concentration (POSS < 12 wt %), the glass transition temperatures (T~g~s) of the IPEP nanocomposites increased from 118 to 170 °C. The char yield increased from 15 to 20 wt %, and the LOI values increased from 22 to 28. © 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 643–652, 2010