Figure 3.
CD and absorption spectra of poly-(2Sx-co-31–x) and h-poly-2S in DMF at 25 °C. h-poly-(2Sx-co-31–x) and h-poly-2 were obtained by annealing poly-(2Sx-co-31–x) and poly-2S, respectively, in DMF at 120 °C for 2 h.
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