N-( 2-hydroxyethyl)-N-methylformamide( HEF) and N-( 2-hydroxypropyl) formamide( HPF) were used as new plasticizers respectively for corn starch to prepare thermoplastic starch film( SF) by casting method. The properties of starch film using traditional plasticizer glycerol( GSF) was compared with that of the starch films using new plasticizers. The morphology of SF was examined by scanning electron microscopy( SEM),homogeneous materials were formed for both SF using HEF as plasticizer( HESF)and SF using HPF...