Nanoscale Blends between Immiscible Polymers via Simultaneous Non-Interfering Polymerisation
| Autor: | Philippe Zinck, Claire-Hélène Brachais, Denise Barbier-Baudry, Eric Finot |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Organic Chemistry Dispersity Polymer Condensed Matter Physics Styrene chemistry.chemical_compound chemistry Phase (matter) Polycaprolactone Polymer chemistry Materials Chemistry Polymer blend Polystyrene Physical and Theoretical Chemistry Caprolactone |
| Zdroj: | Macromolecular Chemistry and Physics. 206:553-558 |
| ISSN: | 1521-3935 1022-1352 |
| DOI: | 10.1002/macp.200400288 |
| Popis: | An important topic in polymer science seeks to improve the performances of polymer blends using nanoscale phase segregation. Here, blends between polystyrene and polycaprolactone are realised by a chemical route. The non-interfering character of the radical polymerisation of styrene and the lanthanide halide initiated ring-opening polymerisation of caprolactone is assessed. The molecular weights range from 2 000 to 3 500 for polycaprolactone and up to 140 000 for polystyrene, with reasonable polydispersity indexes. From calorimetry measurements, it is shown that polystyrene and low molecular weight polycaprolactone are immiscible. The morphology of the blends between the two immiscible polymers studied by atomic force microscopy is consistent with nanometer-scale phase segregation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text