Polymerization Activated by Mechanochemistry using Alkoxyamine Mechanophore

• Main Authors: Ting-Wei Liu, 劉廷暐
• Other Authors: Jyh-Tsung Lee
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/jw48b7

碩士 === 國立中山大學 === 化學系研究所 === 105 === An alkoxyamine mechanophore has been synthesized to first demonstrate the mechanochemical activation of nitroxide mediated polymerization of styrene. The structures of alkoxyamine mechanophore and the synthesized polystyrene (PS) are characterized by gel permeation chromatography, nuclear magnetic resonance (NMR), infrared spectroscopy(IR). The results show that the polymerization of styrene is carried out by mechanical force via ultrasonication. The alkoxyamine mechanophore activated by mechanical forces generates a carbon radical and a nitroxide radical, which is confirmed by a radical indicator, 1,1-diphenyl-2-picrylhydrazyl (DPPH), and electron spin resonance spectroscopy. The novel mechanophore for polymerization opens a new concept of polymer mechanochemistry for applications in self-healing and polymerizations.