Cellulose is a renewable and biodegradable natural polymer,which can be obtained from higher plants, tunicates, bacteria andalga. Cellulose nanocrystals(CNC), a derivative of cellulose, are water-dispersible renewable materials through controlled acid hydrolysis . CNC have been used as effective reinforcing fillers on several kinds of polymers includ-ing poly(butylene succinate) ,poly(lactic acid) , and elastomers . Recently, Kalashnikova et al. havereported that CNC can be irreversibly anchored at the oil–water