(108c) Asphaltenes From Tahe and Liaohe Oils: Structural Analysis and Their Interaction with Comb-Type Copolymers

In this work, asphaltenes were extracted from Liaohe and Tahe crude oils following ASTM D6560-00/IP143. By means of ¹H NMR, XRD and FTIR, their aromaticity, aromatic sheets’ size, and the number in a stack cluster were determined. Comb-type poly(maleic anhydride amide–co–α–olefin–co–styrene)s (MASC) were synthesized with different ratio of styrene/α-octadecene, and their effect on the behavior of asphaltenes in model oil consisting 4 wt% hexatriacontane in decane were investigated. The match of aromaticity between MASC and asphaltenes is of critical importance to disperse asphaltenes and thus improve the flow ability of crude oils.