Nanopaper: Thin Films Prepared from Polymeric Nanotubes

作者：Huang Bin; Hill Reghan; van de Ven Theo^*

来源：Macromolecular Materials and Engineering, 2012, 297(8): 821-830.

DOI：10.1002/mame.201100322

• films
• gas permeation
• nanotubes
• porous materials
• water vapor

A novel mesoporous material (nanopaper) prepared from template-synthesized, polyelectrolyte-stabilized polymer nanotubes is reported. The stacked network of completely collapsed, flat nanotubes forms the porous structure, which has a water-vapor permeability that can be tuned by the stabilizer. The transport mechanism is elucidated based on microscopy, thermal analysis, spectroscopy characterization, and mass-transfer theory. The results suggest that the nanotube surface plays a key role in the through-film transport process. This effect vanishes in the more open films formed from micro-fibrillated cellulose having similar fibril diameters. Nanopaper mechanical properties are also reported. With a pore structure and functionality that can be varied, nanopaper is a promising functional membrane.

• 出版日期2012-8
• 单位McGill