T10 Polyhedral Oligomeric Silsesquioxane-Based Shape Amphiphiles with Diverse Head Functionalities via 鈥淐lick鈥?Chemistry

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• 作者：Xueyan Feng ; Sunsheng Zhu ; Kan Yue ; Hao Su ; Kai Guo ; Chrys Wesdemiotis ; Wen-Bin Zhang ; Stephen Z. D. Cheng ; Yiwen Li
• 刊名：ACS Macro Letters
• 出版年：2014
• 出版时间：September 16, 2014
• 年：2014
• 卷：3
• 期：9
• 页码：900-905
• 全文大小：353K
• ISSN：2161-1653

文摘

Head diversification of shape amphiphiles not only broadens the scope of supramolecular engineering for new self-organizing materials but also facilitates their potential applications in high technologies. In this letter, T₁₀ azido-functionalized polyhedral oligomeric silsesquioxane (POSS) nanoparticle was used to construct new shape amphiphiles via sequential 鈥渃lick鈥?chemistry for addressing two issues: (1) new symmetry of T₁₀ POSS head could enrich the self-assembly behaviors of shape amphiphiles, and (2) copper-catalyzed azide鈥揳lkyne cycloaddition (CuAAC)-based head functionalization strategy allows the introduction of diverse functionalities onto POSS heads, including bulky ligands (i.e., isobutyl POSS) and UV-attenuating ones (i.e., ferrocene and 4-cyano-4鈥?biphenyl). This study expands the library of POSS-based shape amphiphiles with numerous possibilities for head manipulations, offering an important step toward new shape amphiphiles beyond traditional hydrophobic/hydrophilic nature for potential applications in giant molecule-based nanoscience and technology.