DPn of the pTHF block from the terminal CH₂OH on the NaOH treated precursor.

DPn of the pTHF block from the terminal oxazolinium ion on the precursor.

DPn of the pTHF block from the terminal oxazoline on the precursor.

DPn of the pTHF block from the peak at 21.8 ppm on the final ¹³C spectrum

Average DPn of pTHF block

9.8

8.6

8.4

7.7

8.6