eng Ansari Education and Research Society Journal of Ultra Chemistry 0973-3450 2319-8036 December 2007 3 2 119 126 juc 648 article See Yaw Koon 1 Dzulkefly Kuang Abdullah 1 Atan Mohd. Sharif 1 2 Department of Chemistry, Faculty of Science, University Putra Malaysia - 43400 UPM, Serdang, Selangor (MALAYSIA) <p>Sago starch was chemically modified by esterification with fatty acid chlorides of different chain-lengths (hexanoyl, octanoyl and lauroyl chlorides) in the absence of an organic solvent.&nbsp; The products with different degree of substitution (DS) were blended with poly(vinly chloride) (PVC) at various proportions by using conventional solvent-casting technique.&nbsp; The blends were characterized by FT-IR and, their thermal, mechanical and water absorption properties were investigated as a function of blend composition.&nbsp; Result of</p> <p>FT-IR analysis showed that there was no intermolecular interaction between sago esters and PVC.&nbsp; The existence of sago esters in the blends had enhanced the thermal properties of pure PVC plastic. The blends also exhibited satisfactory mechanical property up to 20 wt % of sago ester content where they still retain 80% of pure PVC mechanical properties and showed a minimal water uptake capacity (&lt;4 wt%).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;</p> <p>&nbsp;</p> https://journalofchemistry.org/paper/648/ sago ester esterification poly(vinly chloride) blends mechanical properties