Nanoscopic Fibrous Assemblies Made of Metallophthalocyanine‐Terminated Amphiphilic Polymers
- 7 October 2004
- journal article
- research article
- Published by Wiley in Chemistry – A European Journal
- Vol. 10 (20) , 4954-4959
- https://doi.org/10.1002/chem.200400341
Abstract
Atom‐transfer radical polymerization (ATRP) of acrylates from the initiator‐modified zinc phthalocyanine yielded amphiphilic, phthalocyanine‐terminated polymers with a narrow molecular‐weight distribution. The disklike phthalocyanine moiety was incorporated into one end of the polymer chain. We investigated the aggregation behavior of phthalocyanine‐terminated polymers in solution and in the solid state by using UV‐visible, FT‐IR, differential scanning calorimetry (DSC), and temperature‐controlled powder X‐ray diffraction (XRD) measurements. Amphiphilic phthalocaynine‐terminated polymers that possess a poly[tri(ethylene glycol)methyl ether acrylate] chain aggregate in methanol to form a physical gel. Images from atomic force microscopy (AFM) and transmission electron microscopy (TEM) indicate that the physical gel contains a dense fibrous network structure, in which the zinc phthalocyanine groups were stacked into one‐dimensional columnar aggregates through intermolecular π–π interactions between the π‐conjugated phthalocyanines and through van der Waals interaction of alkyl chains.Keywords
This publication has 63 references indexed in Scilit:
- Precision Synthesis of Organic/Inorganic Hybrid Nanocapsules with a Silanol‐Functionalized Micelle TemplateAngewandte Chemie International Edition in English, 2003
- Fabrication of Ordered Arrays of Gold Nanoparticles Coated with High‐Density Polymer BrushesAngewandte Chemie International Edition in English, 2003
- Room Temperature Discotic Liquid Crystalline Thin Films of Hexa-peri-hexabenzocoronene: Synthesis and Optoelectronic PropertiesChemistry of Materials, 2002
- Photoinduced Electron Transfer in a Mesogenic Donor–Acceptor–Donor SystemChemistry – A European Journal, 2002
- Gold Nanoparticles with Covalently Attached Polymer Chains This work was supported by the Deutsche Forschungsgemeinschaft and by the Fonds der Chemischen Industrie. We are grateful to Prof. Dr. H. Weller, Institut für Physikalische Chemie der Universität Hamburg, for the transmission electron microscopy pictures and to Prof. Dr. M. Möller and Dipl.-Chem. Bernd Tartsch, Abteilung Organische Chemie III der Universität Ulm, for the scanning forcce microscopy investigations.Angewandte Chemie International Edition in English, 2001
- Highly Regular Organization of Conjugated Polymer Chains via Block Copolymer Self-AssemblyAdvanced Materials, 2000
- Hierarchical Growth of Chiral Self-Assembled Structures in Protic MediaJournal of the American Chemical Society, 2000
- Micellar rods and vesicular tubules made of 14''',16'''-diaminoporphyrinsJournal of the American Chemical Society, 1993
- High-Density Nanosecond Charge Trapping in Thin Films of the Photoconductor ZnODEPScience, 1993
- Light-emitting diodes based on conjugated polymersNature, 1990