Synthesis and self-assembly of biobased poly(limonene carbonate)-block-poly(cyclohexene carbonate) diblock copolymers prepared by sequential ring-opening copolymerization
| Autor: | Andreas Greiner, Sabine Rosenfeldt, Volker Abetz, Holger Schmalz, Janina Bailer, Felix Bretschneider, Stefan Feth, Markus Drechsler |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
010405 organic chemistry Cyclohexene Oxide 010402 general chemistry 01 natural sciences Pollution 0104 chemical sciences chemistry.chemical_compound Chemical engineering chemistry visual_art visual_art.visual_art_medium Copolymer Environmental Chemistry Carbonate Lamellar structure Self-assembly Polycarbonate Cyclohexene oxide |
| Zdroj: | Green Chemistry. 21:2266-2272 |
| ISSN: | 1463-9270 1463-9262 |
| Popis: | Polycarbonate diblock copolymers with a biobased poly(limonene carbonate) (PLimC) and a poly(cyclohexene carbonate) (PCHC) block were prepared via β-diiminate zinc catalysed living ring-opening copolymerization (ROCOP) of CO2 and trans-limonene oxide and cyclohexene oxide, respectively. trans-Limonene oxide can be readily obtained from limonene, a renewable non-food source, that can be found in the peel of many citrus fruits and is the main component of orange oil. The block formation was realised by sequential addition of the epoxide monomers. The composition of the resulting amorphous poly(limonene carbonate)-block-poly(cyclohexene carbonate) (PLimC-b-PCHC) diblock copolymers was analysed by 1H NMR spectroscopy. The self-assembly of the diblock copolymers into well-defined bulk morphologies was studied by transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS). Depending on the composition and molecular weight the formation of cylindrical, lamellar, and hexagonally perforated lamellar morphologies was observed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|