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Synthesis and self-assembly of biobased poly(limonene carbonate)-block-poly(cyclohexene carbonate) diblock copolymers prepared by sequential ring-opening copolymerization

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Abstract

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.

Graphical abstract: Synthesis and self-assembly of biobased poly(limonene carbonate)-block-poly(cyclohexene carbonate) diblock copolymers prepared by sequential ring-opening copolymerization

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Publication details

The article was received on 22 Jan 2019, accepted on 05 Apr 2019 and first published on 06 Apr 2019


Article type: Communication
DOI: 10.1039/C9GC00250B
Citation: Green Chem., 2019, Advance Article

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    Synthesis and self-assembly of biobased poly(limonene carbonate)-block-poly(cyclohexene carbonate) diblock copolymers prepared by sequential ring-opening copolymerization

    J. Bailer, S. Feth, F. Bretschneider, S. Rosenfeldt, M. Drechsler, V. Abetz, H. Schmalz and A. Greiner, Green Chem., 2019, Advance Article , DOI: 10.1039/C9GC00250B

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