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. Author manuscript; available in PMC: 2015 Jul 2.
Published in final edited form as: Macromolecules. 2014 Jul 20;47(14):4634–4644. doi: 10.1021/ma402480a

Figure 4.

Figure 4

(a) Rate of the PEVEP backbone degradation of 7 at pH 5.0 (black line) or pH 7.4 (red line) at 37 °C as a function of time, as measured by a comparison of the integrals of initial to the newly appeared 31P NMR resonances. Changes in the 31P NMR resonance of PEVEP backbone of 7 at pH 5.0 (b) and 7.4 (c) at 37 °C over a period of time.