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Stress-strain curves of the different TPU-(PCL-b-PEG-b-PCL) multi-block copolymers with different compositions: (a) Experiments conducted using dry specimens and (b) experiments conducted using wet specimens. The water uptake of TPU-(PCL5-PEG10-PCL5) was 534%, the water uptake of TPU-(PCL7-PEG6-PCL7) was 122%.
