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Schematic representation for the chemical composition of SPEXA macromers. Ethylene oxide (EO) repeat units, SPEG core (SPEGc) and acrylate (AC) functional groups are shown by green, yellow and light red, respectively. Chain extensions with short lactide (L), glycolide (G), p-dioxanone (D) and -caprolactone(C) are shown by brown, blue, pink and purple colors, respectively.
