Functional styrenic copolymer based on 2-(dimethylamino)ethyl methacrylate: Reactivity ratios, biological activity thermal properties and semi-conducting properties
| Autor: | Bihter Sahin, Ibrahim Erol |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Organic Chemistry Polymer Mole fraction Methacrylate Biochemistry Inorganic Chemistry chemistry.chemical_compound chemistry Polymer chemistry Copolymer Environmental Chemistry Thermal stability Polystyrene Physical and Theoretical Chemistry Glass transition |
| Zdroj: | Journal of Fluorine Chemistry. 178:154-164 |
| ISSN: | 0022-1139 |
| DOI: | 10.1016/j.jfluchem.2015.07.002 |
| Popis: | A new type of styrene monomer, 1-[(4-ethenylbenzyl)oxy]-2,3,4,5,6-pentafluorobenzene (EBOPFB) was synthesized. The free-radical-initiated copolymerization of EBOPFB with 2-(dimethylamino)ethyl methacrylate(DMAEMA) were carried out in 1,4-dioxane solution at 65 °C using 2,2′-azobisisobutyronitrile (AIBN) as an initiator with different monomer-to-monomer ratios in the feed. The copolymers were characterized by FTIR, 1H and 13C-NMR spectral studies. The analysis of reactivity ratios revealed that DMAEMA is less reactive than EBOPFB, and copolymers formed are statistically in nature. Thermogravimetric analysis of the polymers reveals that the thermal stability of the copolymers increases with an increase in the mole fraction of EBOPFB in the copolymers. Glass transition temperatures of the copolymers were found to decrease with an increase in the mole fraction of DMAEMA in the copolymers. The room temperature conductivity values of this polymer increases with DMAEMA unit in the copolymer and varies 2.8 and 3.9 ×10−8 S/cm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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