Microstructure of methyl methacrylate/tert-butyl acrylate copolymer characterized by 13C NMR spectroscopy
| Autor: | Norbert Henzel, Piotr Bujak, Marek Matlengiewicz, Marcin Pasich |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Polymers and Plastics Carbon-13 chemistry.chemical_element General Chemistry Carbon-13 NMR Condensed Matter Physics Microstructure Spectral line chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Copolymer Physical chemistry Methyl methacrylate Carbon Macromolecule |
| Zdroj: | Polymer Bulletin. 64:259-273 |
| ISSN: | 1436-2449 0170-0839 |
| DOI: | 10.1007/s00289-009-0161-9 |
| Popis: | 100 MHz 13C NMR spectra of methyl methacrylate/tert-butyl acrylate copolymer, PMMA/tBA, reveal configurational effects of both comonomers. The microstructure of the macromolecular chain has been determined utilizing carbonyl and β-CH2 carbon signals and the spectral assignments were performed in terms of the configurational–compositional sequences. To determine the line positions of individual sequences, the incremental method of the chemical shift calculation has been applied. Based on these data, the analyzed signals were simulated yielding fairly good agreement with the experimental spectra—at the pentad level for the carbonyl signal and at the tetrad level for β-CH2 signal. |
| Databáze: | OpenAIRE |
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