Soluble Functional Polyacetylenes for Laser Protection: Molecular Design, Preparation and Optical Limiting Mechanism
(0) Three series of soluble functional polyacetylens containing azobenzene pendant groups were designed and prepared using Rh(nbd)Cl<,2>-Et<,3>N as catalyst by copolymerization with monomer of soluble polymer, adding flexible spacer or/and terminal alkyloxy group methods. Their structures and properties are characterized and evaluated by IR, NMR, TGA, UV, optical limiting, and nonlinear optical analyses. All the polymers possess large molecular weight and high thermal stability, displays novel optical limiting properties and large third-order nonlinear optical susceptibility up to 1.34×10<-10>esu. The relation between molecular structure and their optical properties were investigated in detail.
optical limiting NLO polyacetylenes azobenzene synthesis
XU Hongyao SU Xinyan YIN Shouchun GUO Quanzhen LI Jirong
College of Material Science and Engineering & State Key Laboratory of Chemical Fibers and Polymeric School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China
国际会议
上海
英文
641-642
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）