Controlled synthesis of random, block-random and gradient styrene, methyl methacrylate and acrylonitrile Terpolymers via Nitroxide-mediated free radical polymerization
| Autor: | Mikhail Yu. Zaremski, E. S. Garina, Innokentiy Eremeev, B. A. Korolev, O. V. Borisova |
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| Rok vydání: | 2017 |
| Předmět: |
Nitroxide mediated radical polymerization
Materials science Polymers and Plastics Organic Chemistry Radical polymerization 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Living free-radical polymerization Monomer chemistry Polymerization Polymer chemistry Materials Chemistry Copolymer Acrylonitrile Methyl methacrylate 0210 nano-technology |
| Zdroj: | Journal of Polymer Research. 24 |
| ISSN: | 1572-8935 1022-9760 |
| DOI: | 10.1007/s10965-017-1303-7 |
| Popis: | Different types of the styrene − methyl methacrylate −acrylonitrile terpolymers were synthesized according to the recently proposed concept of the living nitroxide-mediated terpolymerization. Random azeotropic and gradient terpolymers were prepared using the living TEMPO-mediated polymerization. Block random terpolymer was obtained via the living terpolymerization initiated by macro-alkoxyamine polystyrene-SG1. In all systems, terpolymerization proceeds in the living manner even in the presence of TEMPO. Upon complete polymerization at high conversions of monomers, the molecular weight of terpolymers linearly increases with the monomer conversion. The resultant terpolymers were characterized by the methods of turbidimetric titration, GPC, DSC, and TGA, and their characteristics were compared with their non-living analogs synthesized by the conventional radical polymerization. The effect of the macromolecular structure on the thermal stability of the terpolymers was studied. |
| Databáze: | OpenAIRE |
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