Abstract
AbstractIn this work, polymeric additives based on poly(ethylene‐co‐vinyl acetate) were chemically modified by inserting different contents of hydrocarbon chains (C14). The performance of the modified copolymers as organic deposition inhibitors (ODI) was evaluated using a model system composed of different types of paraffins by measuring the pour point and viscosity of these systems. The phase behavior of the modified copolymers was evaluated in systems with different solubility parameters in order to correlate the additive's performance as ODI and the esteem solubility parameter of these modified copolymers. The results show that the EVA modified copolymers performed better ODI than those obtained for non‐modified copolymer. However, the molecule must retain a hydrophobic‐lypophobic balance in order to keep its capacity to modify the paraffin crystal. Moreover, copolymers with similar solubility parameters did not present the same pour‐point values, which suggests that the solubility of the additive is important, but is not the only factor that influences the additive performance.
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