標題: Selective Template Wetting Routes to Hierarchical Polymer Films: Polymer Nanotubes from Phase-Separated Films via Solvent Annealing
作者: Ko, Hao-Wen
Cheng, Ming-Hsiang
Chi, Mu-Huan
Chang, Chun-Wei
Chen, Jiun-Tai
應用化學系
Department of Applied Chemistry
公開日期: 1-三月-2016
摘要: We demonstrate a novel wetting method to prepare hierarchical polymer films with polymer nanotubes on selective regions. This strategy is based on the selective wetting abilities of polymer chains, annealed in different solvent vapors, into the nanopores of porous templates. Phase separated films of polystyrene (PS) and poly(methyl methacrylate) (PMMA), two commonly used polymers, are prepared as a model system. After anodic aluminum oxide (AAO) templates are placed on the films, the samples are annealed in vapors of acetic acid, in which the PMMA chains are swollen and wet the nanopores of the AAO templates selectively. As a result, hierarchical polymer films containing PMMA nanotubes can be obtained after the AAO templates are removed. The distribution of the PMMA nanotubes of the hierarchical polymer films can also be controlled by changing the compositions of the polymer blends. This work not only presents a novel method to fabricate hierarchical polymer films with polymer nanotubes on selective regions, but also gives a deeper understanding in the selective wetting ability of polymer chains in solvent vapors.
URI: http://dx.doi.org/10.1021/acs.langmuir.5b04746
http://hdl.handle.net/11536/134057
ISSN: 0743-7463
DOI: 10.1021/acs.langmuir.5b04746
期刊: LANGMUIR
Volume: 32
Issue: 8
起始頁: 2110
結束頁: 2116
顯示於類別:期刊論文