文献类型：期刊文献

英文题名：Hemi-telechelic and telechelic organic/inorganic poly(ethylene oxide) hybrids based on polyhedral oligmeric silsesquioxanes (POSSs): Synthesis, morphology and self-assembly

作者：Zhang, Weian[1];Wang, Shaolei[1];Kong, Jie[2]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]Northwestern Polytech Univ, Sch Sci, Shaanxi Key Lab Macromol Sci & Technol, Dept Appl Chem, Xian 710072, Peoples R China

年份：2012

卷号：72

期号：9

起止页码：580

外文期刊名：REACTIVE & FUNCTIONAL POLYMERS

收录：;EI(收录号：20123115294911);WOS:【SCI-EXPANDED(收录号:WOS:000307695200005)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Nos. 21074035, 51173044 and 20874080). W.Z. acknowledges the Fundamental Research Funds for the Central Universities and the Alexander von Humboldt Foundation. J.K. sincerely thanks the Grant of "New Staff and Research Area" of NPU (No. 11GH0133) and Aero-Science Foundation of China (No. 2009ZH53073). This work was also supported by Science and Technology Commission of Shanghai Municipality (STCSM, Contract No. 10dz2220500).

语种：英文

外文关键词：Telechelic; Poly(ethylene oxide); Polyhedral oligmeric silsesquioxanes (POSSs); Self-assembly

摘要：Amphiphilic hemi-telechelic and telechelic poly(ethylene oxide) (PEO) hybrids based on polyhedral oligmeric silsesquioxane (PUSS) were prepared via the copper-catalyzed azide-alkyne "click" reaction. Thermal properties of POSS-PEO were characterized using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). The result shows that the thermal properties of telechelic POSS-PEO are effectively enhanced by POSS. The morphology of the PUSS-containing PEO hybrid crystals was investigated using polarized optical microscopy (POM), and the results indicate that it is much easier for the PUSS in the telechelic POSS-PEO hybrids (T-POSS-PEO) to form quite large aggregates, which act as nucleating agents during the crystallization of the PEO chains. The self-assembly behavior of POSS-PEO in water was also studied using transmission electron microscopy (TEM). The results reveal that hemi-telechelic POSS-PEO hybrids (HT-POSS-PEO) can self-assemble into spherical aggregates, whereas the T-POSS-PEO hybrids self-assemble into ellipsoidal aggregates. (c) 2012 Elsevier Ltd. All rights reserved.