title: Rapid fabrication of three-dimensional porous films with biomimetic patterns by natural evaporation of amphiphilic polyacetylene solutions under ambient conditions.
abstract: A simple process for fast fabrication of thin films with biomimetic morphological structures from a group of linear homopolymers is developed. Natural evaporation of tetrahydrofuran, chloroform, and hexane-dichloromethane solutions of poly(phenylacetylene)s that contain amino acid and ethylene glycol moieties under ambient conditions instantly produces three-dimensional porous films with structural patterns reminiscent of honeycombs and radiolarian shells. Morphological analysis by optical and electronic microscopy suggests that vesicles of the amphiphilic polymers serve as building blocks in the self-organization to the biomimetic structures.
authors.affiliation: Department of Chemistry, Institute of Nano Science and Technology, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: F
authors.initials: F
authors.lastname: Salhi
authors.forename: K K
authors.initials: KK
authors.lastname: Cheuk
authors.forename: Q
authors.initials: Q
authors.lastname: Sun
authors.forename: J W
authors.initials: JW
authors.lastname: Lam
authors.forename: J A
authors.initials: JA
authors.lastname: Cha
authors.forename: G
authors.initials: G
authors.lastname: Li
authors.forename: B
authors.initials: B
authors.lastname: Li
authors.forename: J
authors.initials: J
authors.lastname: Luo
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.forename: B Z
authors.initials: BZ
authors.lastname: Tang
mesh_terms: D000114:Acetylene / Q000031:analogs & derivatives* / Q000737:chemistry*; D040761:Biomimetic Materials / Q000138:chemical synthesis* / Q000737:chemistry; D032701:Biomimetics / Q000379:methods*; D002725:Chloroform / Q000737:chemistry; D003460:Crystallization / Q000379:methods*; D005663:Furans / Q000737:chemistry; D006586:Hexanes / Q000737:chemistry; D046911:Macromolecular Substances; D008567:Membranes, Artificial; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D011108:Polymers / Q000737:chemistry*; D053279:Polyynes; D016062:Porosity; D012996:Solutions / Q000737:chemistry; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry; D014835:Volatilization
chemical_list: D005663:Furans; D006586:Hexanes; D046911:Macromolecular Substances; D008567:Membranes, Artificial; D011108:Polymers; D012996:Solutions; D013501:Surface-Active Agents; D053279:Polyynes; C018674:tetrahydrofuran; D002725:Chloroform; D000114:Acetylene