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. 2018 Apr 27;10(5):478. doi: 10.3390/polym10050478

Table 1.

Ratio the peak area of S and SH, as determined in ToF-SIMS spectra.

Sample S/SH area ratio
NAC 3.5
Unmodified CS-g-PMMA 10.8
Thiolated CS-g-PMMA 3.9