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GPC traces of the products of surface0initiated atom transfer radical polymerization (SI ATRP) with styrene (St) in the presence of (a) TOCN-Br2 (Br atoms with 7.02 wt%) and (b) TOCN-Br3 (Br atoms with 8.70 wt%). Conditions were referred to Ref. [1, Figure 9] (TOCN-Br: TEMPO-oxidized cellulosed nanofibrils with bromoisobutyrate ATRP initiating site; Mn: number-average molecular weight; Đ: molecular weight distribution).
