New Thermoplastic Elastomers by Quasiliving Atom Transfer Free Radical Grafting
| Autor: | Béla Iván, Tamás Fónagy, Márta Szesztay |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Materials science
Polymers and Plastics Atom-transfer radical-polymerization Mechanical Engineering Radical polymerization Solution polymerization 02 engineering and technology Butyl rubber 010402 general chemistry 021001 nanoscience & nanotechnology Grafting 01 natural sciences 0104 chemical sciences Styrene chemistry.chemical_compound chemistry Mechanics of Materials Polymer chemistry Materials Chemistry Ceramics and Composites Copolymer Thermoplastic elastomer 0210 nano-technology |
| Zdroj: | Journal of Reinforced Plastics and Composites. 21:1411-1419 |
| ISSN: | 1530-7964 0731-6844 |
| DOI: | 10.1177/0731684402021015206 |
| Popis: | Controlled synthesis of a new thermoplastic elastomer (TPE), poly(isobutylene-g-styrene) (PIB-g-PSt) was achieved by quasiliving atom transfer radical polymerization (ATRP). A new commercially available butyl rubber containing bromobenzyl moieties was used as macroinitiator for ATRP of styrene catalyzed by CuBr/2,20-bipyridine complex. Both bulk and solution polymerization resulted in well-defined graft copolymers as indicated by analyses with 1H NMR and GPC. Phase separated morphology in these graft copolymers was found by DSC. Stress-strain analyses indicate high elongation and tensile strength for PIB-g-PSt grafts with certain composition. This new grafting process and the resulting TPE are candidates for several useful applications. |
| Databáze: | OpenAIRE |
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