Abstract
Aliphatic polycarbonates based on CO2 and epoxides are a promising group of polymers due to the utilization of CO2 as a monomer combined with a versatile epoxide feedstock. To increase the attractiveness of these polymers as a material, the poor mechanical properties have to be improved. Herein, we present the synthesis of block copolymers from poly(cyclohexene carbonate) and poly(dimethyl siloxane) (PDMS), where diffusion-ordered NMR spectroscopy measurements indicate a successful synthesis of block structures. The resulting material shows an elongation at break of up to 24% in tensile testing with an incorporation ratio of only 27% PDMS in the copolymer. At the same time, a high tensile strength (27.9 MPa) and modulus of elasticity (1726 MPa) are observed.
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