Functionalization of Graphene Oxide with Polyhedral Oligomeric Silsesquioxane (POSS) for Multifunctional Applications

作者：Yuhua Xue, Yong Liu, Fan Lü, Jia Qu, Hao Chen, Liming Dai · 发表于：The Journal of Physical Chemistry Letters · 年份：2012 · DOI：10.1021/jz3005877 · 被引用次数：268 · 研究领域：Silicone and Siloxane Chemistry、Graphene research and applications、Surface Modification and Superhydrophobicity

Through the amide formation between amine-functionalized polyhedral oligomeric silsesquioxane (POSS) and oxygen-containing groups (e.g., epoxy and carboxyl groups) in graphene oxide (GO), we have synthesized POSS-functionalized graphene nanosheets (POSS-graphene), which are highly soluble in various organic solvents attractive for multifunctional applications. Thin films from solution casting of the resultant POSS-graphene were found to show superhydrophobic properties with a water/air contact angle of ∼157°, while the superhydrophobic POSS-graphene powder could be used to construct liquid marbles. In addition, the POSS-graphene hybrids were also used as novel nanofillers to increase the glass transition temperature (Tg) and decompose temperature (Td) for polymers.