title: Phase separation micromolding: a new generic approach for microstructuring various materials.
abstract: Phase separation micromolding (PSmicroM) is a versatile microfabrication technique that can be used to structure a very broad range of polymers, including block copolymers and biodegradable and conductive polymers without the need for clean-room facilities. By incorporating a subsequent process step, carbon, ceramic, and metallic microstructures can also be fabricated from a polymeric or hybrid precursor. The replication process is straightforward and cost-effective. It relies on phase separation of a polymer solution while in contact with a structured mold. Intrinsic shrinkage during the phase separation facilitates the release of the replica from the mold, which increases the reliability of the process even at small feature sizes, thin polymer films, or high aspect ratios. Under suitable circumstances perforation of the polymer film can be obtained, resulting in completely open "through" microstructures. Furthermore, porosity can be introduced in a microstructure, which may result in unknown functionalities.
authors.affiliation: Membrane Technology Group, Faculty of Science and Technology, University of Twente, PO Box 217, 7500AE Enschede, The Netherlands.
authors.forename: Laura
authors.initials: L
authors.lastname: Vogelaar
authors.forename: Rob G H
authors.initials: RG
authors.lastname: Lammertink
authors.forename: Jonathan N
authors.initials: JN
authors.lastname: Barsema
authors.forename: Wietze
authors.initials: W
authors.lastname: Nijdam
authors.forename: Lydia A M
authors.initials: LA
authors.lastname: Bolhuis-Versteeg
authors.forename: Cees J M
authors.initials: CJ
authors.lastname: van Rijn
authors.forename: Matthias
authors.initials: M
authors.lastname: Wessling
mesh_terms: D000438:Alcohols / Q000737:chemistry; D001672:Biocompatible Materials / Q000737:chemistry; D002244:Carbon; D002516:Ceramics / Q000737:chemistry; D003460:Crystallization; D004121:Dimethyl Sulfoxide / Q000737:chemistry; D005663:Furans / Q000737:chemistry; D006358:Hot Temperature; D008422:Materials Testing; D008832:Microchemistry / Q000295:instrumentation* / Q000379:methods*; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods*; D020959:Polyethylene / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D011760:Pyrrolidinones / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature
chemical_list: D000438:Alcohols; D001672:Biocompatible Materials; D005663:Furans; D011108:Polymers; D011760:Pyrrolidinones; C018674:tetrahydrofuran; D002244:Carbon; D020959:Polyethylene; C038678:N-methylpyrrolidone; D004121:Dimethyl Sulfoxide