文献类型：期刊文献

英文题名：A facile synthesis of waterborne polyurethane/silica/CdTe-QDs nanocomposites with excellent mechanical, thermal and optical properties

作者：Zhou, Xiaosan[1];Pan, Zhaoqi[1];Gao, Yun[1]

机构：[1]E China Univ Sci & Technol, Coll Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：5

期号：3-4

起止页码：281

外文期刊名：OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS

收录：;EI(收录号：20203409077314);WOS:【SCI-EXPANDED(收录号:WOS:000290774800020)】；

语种：英文

外文关键词：Nanocomposites; Polyurethane; Silica; CdTe; QD; TEM; Dynamic light scattering

摘要：Monodispersed waterborne polyurethane WPU/silica/CdTe-QDs nanocomposites were directly synthesized via the reaction between the groups of amine group (-NH2) on the SiO2-hybrided CdTe QDs surface and an isocyanate end group (-NCO) of polymer chains. The SiO2-hybrided CdTe QDs were characterized by Dynamic Light Scattering, Transmission Electron Microscopy. The WPU/silica/CdTe-QDs nanocomposites were characterized by Fluorescence Spectroscopy, the results shows the nanocomposites could emit bright photoluminescence. These nanocomposites have notably up-conversion fluorescence properties. Dynamic mechanic alanalysis (DMA) reveals these nanocomposites also have excellent mechanical properties.