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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: J Biomater Sci Polym Ed. 2011 Mar;22(10):1275–1298. doi: 10.1163/092050610X504260

Figure 1.

Figure 1

1H NMR spectra of ECT copolymers with varying TSU content. Polymer composition and molecular weight were calculated by comparing integrals of characteristic peaks of the PEG blocks at 3.64 ppm and the typical protons for the monomers (3.95 ppm for TSU and 4.06 ppm for ε-CL). The molecular weight of PEG served as the reference.