Akbar Varamesh - Division of Polymer Science and Technology, Research Institute of Petroleum Industry RIPI,
Fatemeh Rekabdar - Division of Polymer Science and Technology, Research Institute of Petroleum Industry RIPI,
Rouhollah Soleyman - Division of Polymer Science and Technology, Research Institute of Petroleum Industry RIPI,
Kazem Fooladi - Division of Petroleum Engineering, Research Institute of Petroleum Industry RIPI,

In the present work the novel dispersant based on transamidation of rapeseed oil with diethanolamine was prepared. Meanwhile, for the synthesis ofeffective dispersant, rapeseed oil was used as starting material. Rapeseed oil is one of the most important renewable resources raw materials, due to its lowcost, low toxicity, high content of C18 chain in backbone and widespread availability in most regions. The structures of the prepared dispersantswere confirmed by examination of their FTIR and 1HNMR spectra. The evaluation performance of the synthesized dispersant as asphaltene dispersant wasreadily obtained by UV-Visible spectroscopy method. The obtained result showed the good efficiency of synthesized dispersant for prevention of asphaltene deposition.