Highly ordered alignment of a vinyl polymer by host–guest cross-polymerization
| Autor: | Piero Sozzani, Masahiko Tsujimoto, Gaetano Distefano, Silvia Bracco, Angiolina Comotti, Hirohito Suzuki, Seiji Isoda, Susumu Kitagawa, Takashi Uemura |
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| Přispěvatelé: | Distefano, G, Suzuki, H, Tsujimoto, M, Isoda, S, Bracco, S, Comotti, A, Sozzani, P, Uemura, T, Kitagawa, S |
| Rok vydání: | 2013 |
| Předmět: |
Solid-state chemistry
Surface Properties Coordination polymer General Chemical Engineering CHIM/04 - CHIMICA INDUSTRIALE NANOCOMPOSITE NANOSTRUCTURES Polymerization Styrene METAL-ORGANIC FRAMEWORKS chemistry.chemical_compound Microscopy Electron Transmission X-Ray Diffraction Polymer chemistry POROUS COORDINATION POLYMERS chemistry.chemical_classification Molecular Structure Stereoisomerism General Chemistry Polymer Vinyl polymer POLYMER MORPHOLOGY CHIM/02 - CHIMICA FISICA Cross-Linking Reagents Monomer chemistry Chemical engineering POLYSTYRENE FUNCTIONALIZATION Polyvinyls Polystyrene Porosity Powder Diffraction |
| Zdroj: | Nature Chemistry. 5:335-341 |
| ISSN: | 1755-4349 1755-4330 |
| DOI: | 10.1038/nchem.1576 |
| Popis: | Chain alignment can significantly influence the macroscopic properties of a polymeric material, but no general and versatile methodology has yet been reported to obtain highly ordered crystalline packing of polymer chains, with high stability. Here, we disclose a strategy that relies on 'ordered crosslinks' to produce polymeric materials that exhibit a crystalline arrangement. Divinyl crosslinkers (2,5-divinyl-terephthalate) were first embedded, as substitutional ligands, into the structure of a porous coordination polymer (PCP), [Cu(terephthalate)triethylenediamine0.5]n. A representative vinyl monomer, styrene, was subsequently polymerized inside the channels of the host PCP. The polystyrene chains that form within the PCP channels also crosslink with the divinyl species. This bridges together the polymer chains of adjacent channels and ensures that, on selective removal of the PCP, the polymer chains remain aligned. Indeed, the resulting material exhibits long-range order and is stable to thermal and solvent treatments, as demonstrated by X-ray powder diffraction and transmission electron microscopy. |
| Databáze: | OpenAIRE |
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