title: Fabrication of surface-supported low-dimensional polyimide networks.
abstract: Interest in thermal and chemical stability of surface-supported organic networks has stimulated recent attempts to covalently interlink adsorbed molecular species into extended nanostructures. We show, using low-temperature scanning tunneling microscopy, that imidization of anhydrides and amines adsorbed on Au(111) can be thermally initiated under controlled ultrahigh vacuum conditions. Using two types of amine-functionalized polyphenyl molecules together with the organic semiconductor PTCDA, monolayer thick linear polymeric strands and a porous polymeric network with nanoscale dimensions are obtained.
authors.affiliation: EMPA, Swiss Federal Laboratories for Materials Testing and Research, 3602 Thun, Switzerland.
authors.forename: Matthias
authors.initials: M
authors.lastname: Treier
authors.forename: Neville V
authors.initials: NV
authors.lastname: Richardson
authors.forename: Roman
authors.initials: R
authors.lastname: Fasel
mesh_terms: D000588:Amines / Q000138:chemical synthesis / Q000737:chemistry; D000812:Anhydrides / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D006860:Hydrogen Bonding; D008567:Membranes, Artificial; D016252:Microscopy, Scanning Tunneling / Q000379:methods; D015394:Molecular Structure; D010316:Particle Size; D010569:Perylene / Q000031:analogs & derivatives / Q000737:chemistry; D016062:Porosity; D012117:Resins, Synthetic / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature; D014227:Triazines / Q000737:chemistry
chemical_list: C533764:2,4,6-tris(4-aminophenyl)-1,3,5-triazine; C521594:3,4,9,10-perylenetetracarboxylic dianhydride; D000588:Amines; D000812:Anhydrides; D008567:Membranes, Artificial; D012117:Resins, Synthetic; D014227:Triazines; C029945:polyimide resin; D010569:Perylene; D006046:Gold