Rheology, Structural and thermal analysis of modified PET by reactive extrusion in the Presence of SMA

In this project, chain extending effect of addition styrene-maleic anhydride copolymers (SMA) containing (5 or 20Wt %) maleic anhydride (MA) during reactive melt blending in reactive extrusion was investigated. Composition based on higher content of SMA copolymer with high content ration of MA(S4) shown higher complex viscosity ,Intrinsic viscosity and lower carbonyl index . According to differential scanning calorimetry (DSC) results, increasing the content of SAM copolymers and MA content of SMA improved PET crystallinity.

Keywords:

polyethyleneterephetalate , styrene-maleic anhydride , complex viscosity , intrinsic viscosity , crystallization temperature