Novel copolymers of styrene. 2. Oxy ring-substituted propyl 2-cyano-3-phenyl-2-propenoates
| Autor: | Cristian A. Ovies, Carla F. Dos Santos, Paul John, Roberto Godina, Adam M. Malinowski, Sarah B. Scheinman, Gregory B. Kharas, Marta Konopka, Jordan M. Olsen, Alan J. Mlotkowski, Joshua Z. Smith, Courtney R. Kent, Youya Gao |
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| Rok vydání: | 2016 |
| Předmět: |
Polymers and Plastics
Chemistry chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Nitrogen 0104 chemical sciences Catalysis Styrene chemistry.chemical_compound Residue (chemistry) Monomer Polymer chemistry Materials Chemistry Ceramics and Composites Copolymer Knoevenagel condensation Piperidine 0210 nano-technology |
| Zdroj: | Journal of Macromolecular Science, Part A. 53:600-604 |
| ISSN: | 1520-5738 1060-1325 |
| DOI: | 10.1080/10601325.2016.1212306 |
| Popis: | Novel trisubstituted ethylenes, oxy ring-substituted propyl 2-cyano-3-phenyl-2-propenoates, RPhCH˭C(CN)CO2C3H7 (where R is 2-methoxy, 3-methoxy, 4-methoxy, 2-ethoxy, 3-ethoxy, 4-ethoxy, 4-propoxy, 4-butoxy, 3-phenoxy, 4-phenoxy) were prepared and copolymerized with styrene. The monomers were synthesized by the piperidine catalyzed Knoevenagel condensation of oxy ring-substituted benzaldehydes and propyl cyanoacetate and characterized by CHN elemental analysis, IR, 1H- and 13C-NMR. All the ethylenes were copolymerized with styrene (M1) in solution with radical initiation (ABCN) at 70°C. The composition of the copolymers was calculated from nitrogen analysis, and the structures were analyzed by IR, 1H and 13C-NMR, GPC, DSC, and TGA. Decomposition of the copolymers in nitrogen occurred in two steps, first in the 200–500°C range with residue (1.2–3.6% wt.), which then decomposed in the 500–800°C range. |
| Databáze: | OpenAIRE |
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