Author/Authors :
Sankri، نويسنده , , Abdulkader and Arhaliass، نويسنده , , Abdellah and Dez، نويسنده , , Isabelle and Gaumont، نويسنده , , Annie Claude and Grohens، نويسنده , , Yves and Lourdin، نويسنده , , Denis and Pillin، نويسنده , , Isabelle and Rolland-Sabaté، نويسنده , , Agnès and Leroy، نويسنده , , Eric، نويسنده ,
Abstract :
Thermoplastic starch (TPS) plasticized by 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) was obtained by melt processing. The resulting electrically conductive TPS samples were less hygroscopic than glycerol plasticized TPS samples. Despite this lower water uptake, [BMIM]Cl seems to be intrinsically a more efficient plasticizer of starch. [BMIM]Cl plasticized TPS samples show a much higher elongation at break in the rubbery state than the glycerol plasticized TPS samples. Their unusually low rubbery Youngʹs modulus for thermoplastic starch (0.5 MPa) suggests a strong reduction of hydrogen bonds between the starch chains due to the presence of the ionic liquid. A detailed IR spectroscopy analysis supports this interpretation.
Keywords :
Ionic liquids , mechanical properties , plasticization , electrical conductivity , Thermoplastic starch , interactions
