SYNTHESIS AND CHARACTERIZATION OF FUNCTIONALIZED CARBON BLACK/POLY(VINYL ALCOHOL) HIGH REFRACTIVE INDEX NANOCOMPOSITES  

作　　者：Peng-fei Xue Ji-bin Wang Yu-bin Bao 李秋影 Chi-fei Wu 

机构地区：[1]Polymer Alloy Laboratory and Key Laboratory of Ultrafine Materials of Ministry of Education,East China University of Science and Technology,Shanghai,200237,China [2]Shanghai Key Laboratory Polymeric Materials,East China University of Science and Technology,Shanghai,200237,China

出　　处：《Chinese Journal of Polymer Science》2012年第5期652-663,共12页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.50733001);Natural Science Foundation of Shanghai(No.11ZR1409500);Shanghai Key Laboratory Project(No.08DZ2230500)

摘　　要：Carbon black （CB）/polymer composites with high refractive index （RI） were fabricated from poly（vinyl alcohol） （PVA） and covalently functionalized nano-CB （PVA-es-CB） by simple esterification reaction. Transmission electron microscopy showed that tmifonn aggregates of PVA-es-CB nanoparticles with a size smaller than I00 nm formed in the nanocomposite films. Ellipsometric measurements indicated that the PVA-es-CB/PVA composite films had a RI in the range 1.520-1.598 linearly increased with the PVA-es-CB volume content. Theoretical equation based on Lorentz-Lorenz theory provided reasonably close estimation of the refractive indices to the experimentally observed values. The hybrid films also revealed relatively good surface planarity, thermal stability and optical transparency.Carbon black （CB）/polymer composites with high refractive index （RI） were fabricated from poly（vinyl alcohol） （PVA） and covalently functionalized nano-CB （PVA-es-CB） by simple esterification reaction. Transmission electron microscopy showed that tmifonn aggregates of PVA-es-CB nanoparticles with a size smaller than I00 nm formed in the nanocomposite films. Ellipsometric measurements indicated that the PVA-es-CB/PVA composite films had a RI in the range 1.520-1.598 linearly increased with the PVA-es-CB volume content. Theoretical equation based on Lorentz-Lorenz theory provided reasonably close estimation of the refractive indices to the experimentally observed values. The hybrid films also revealed relatively good surface planarity, thermal stability and optical transparency.

关 键 词：High refractive index Carbon black Poly（vinyl alcohol） Nanocomposite. 

分 类 号：TB383.1[一般工业技术—材料科学与工程]