title: Preparation of mesoporous nanofibers by vapor phase synthesis: control of mesopore structures with the aid of co-surfactants.
abstract: Mesoporous nanofibers (MSNFs) can be fabricated in the pores of anodic aluminum oxide (AAO) membrane using diverse methods. Among them vapor phase synthesis (VPS) provides several advantages over sol-gel or evaporation-induced self-assembly (EISA) based methods. One powerful advantage is that we can employ multiple surfactants as structural directing agents (SDAs) simultaneously. By adopting diverse pairs of SDAs, we can control the mesopore structures, i.e. pore size, surface area, and even the morphology of mesostructures. Here, we used F127 as a main SDA, which is relatively robust (thus, difficult to change the mesopore structures), and added a series of cationic co-surfactants to observe the systematical changes in their mesostructure with respect to the chain length of the co-surfactant.
authors.affiliation: School of Chemical and Biological Engineering, College of Engineering, Seoul National University, Shinlimdong 56-1, Seoul, 151-742, Korea.
authors.forename: Sa Hoon
authors.initials: SH
authors.lastname: Min
authors.forename: Joonwon
authors.initials: J
authors.lastname: Bae
authors.forename: Jyongsik
authors.initials: J
authors.lastname: Jang
authors.forename: Kyung Jin
authors.initials: KJ
authors.lastname: Lee
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology; D016062:Porosity; D013501:Surface-Active Agents / Q000737:chemistry*; D014835:Volatilization
chemical_list: D013501:Surface-Active Agents; D000537:Aluminum Oxide