A facile and effective “grafting from” method by ROP of N-sulfonyl aziridines toward cellulose-g-polysulfonamides has been developed for efficient oil/water separation. The cellulose paper was initially succinylated to transform the hydroxyl to carboxyl acid groups, which act as the initiating sites for the ring-opening copolymerization of fluorescent 2-methyl-1-dansylaziridine and 2-methyl-1-tosylaziridine (TsMAz) towards the grafted cellulose. Both steps are catalyzed by the same compound, 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (MTBD). The grafted polysulfonamide ratio was up to 136 wt%, and the surface contact angle up to 147°. A one-pot tandem strategy was applied to produce the grafted cellulose paper with a grafting ratio ranging from 96 to 150 % and a contact angle over 127°. The modified cellulose paper material showed promising properties for efficient oil/water separations.

N-磺酰基氮丙啶通过ROP向纤维素-g的简便有效的“嫁接”方法-已经开发了聚磺酰胺用于有效的油/水分离。最初将纤维素纸进行琥珀酰化处理，将羟基转化为羧基，这是荧光2-甲基-1-丹氮基氮丙啶和2-甲基-1-甲苯基氮丙啶（TsMAz）向接枝的开环共聚的起始位点纤维素。这两个步骤均由相同的化合物7-甲基-1,5,7-三氮杂双环[4.4.0]癸-5-烯（MTBD）催化。接枝的聚磺酰胺比例高达136重量％，表面接触角高达147°。采用一锅串联策略生产接枝率为96％至150％，接触角超过127°的接枝纤维素纸。改性纤维素纸材料显示出有效油/水分离的良好性能。