Reactivity ratio of novel acrylic copolymer by NMR spectroscopy
| Autor: | Kirit H. Patel, Rajni M. Patel, Jaimin R. Patel |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Infrared spectroscopy Nuclear magnetic resonance spectroscopy Polymer Styrene Solvent chemistry.chemical_compound Colloid and Surface Chemistry Monomer chemistry Polymer chemistry Materials Chemistry Copolymer Physical chemistry Reactivity (chemistry) Physical and Theoretical Chemistry |
| Zdroj: | Colloid and Polymer Science. 287:89-95 |
| ISSN: | 1435-1536 0303-402X |
| DOI: | 10.1007/s00396-008-1943-6 |
| Popis: | The monomer 4-methylcoumarylacrylate (4-MCA) was synthesized from 7-hydroxy-4-methylcoumarin and characterized by conventional methods. Homo and copolymers of 4-methylcoumarylacrylate and styrene were synthesized with different feed ratios using N,N-dimethylformamide (DMF) as a solvent and 2,2′-azobisisobutyronitrile as an initiator at 70°C.The resulting polymers were characterized by infrared spectroscopy. Copolymer compositions were determined by nuclear magnetic resonance spectroscopy. The monomer reactivity ratios were determined by applying the conventional linearization method of Fineman–Ross and Kelen–Tudos. The reactivity ratios values of 4-methylcoumarylacrylate and styrene obtained from F–R plot are 1.36 and 0.62, respectively, and from K–T plot 1.24 and 0.58, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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