title: Porous polymers based on aryleneethynylene building blocks.
abstract: Porous conjugated polymers are synthesized by metal-catalyzed coupling reactions. The progress for porous polymers when planar or tetrahedral building blocks are connected by alkyne units into novel materials is highlighted. The most prominent reaction for the buildup of the microporous alkyne-bridged polymers is the Sonogashira reaction, connecting alkynes to aromatic iodides or bromides. The availability of the building blocks and the potency of the Sonogashira reaction allow preparing a large variety of intrinsically porous polymeric materials, in which rigid struts connect multipronged centers. The microporous polymers are used as catalysts and as storage materials for gases and sensors. Postfunctionalization schemes, understanding of structure-property relationships, and the quest for high porosity are pertinent.
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Im Neuenheimer Feld 270, 69120, Heidelberg, FRG; Centre of Advanced Materials (CAM), Ruprecht-Karls-Universität, Im Neuenheimer Feld 225, 69120, Heidelberg, FRG.
authors.forename: Uwe H F
authors.initials: UH
authors.lastname: Bunz
authors.forename: Kai
authors.initials: K
authors.lastname: Seehafer
authors.forename: Florian L
authors.initials: FL
authors.lastname: Geyer
authors.forename: Markus
authors.initials: M
authors.lastname: Bender
authors.forename: Ingo
authors.initials: I
authors.lastname: Braun
authors.forename: Emanuel
authors.initials: E
authors.lastname: Smarsly
authors.forename: Jan
authors.initials: J
authors.lastname: Freudenberg
mesh_terms: D000480:Alkynes / Q000138:chemical synthesis / Q000737:chemistry; D002384:Catalysis; D005740:Gases / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry; D008670:Metals / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D016062:Porosity
chemical_list: D000480:Alkynes; D005740:Gases; D008670:Metals; D011108:Polymers; D006108:Graphite
keywords: Sonogashira reaction; alkynes; conjugated polymers; porous conjugated polymers