Synthesis and characterization of polymer nanocomposite materials for advanced application

Thumbnail Image
Issue Date
Abdelgawad, Ammar M.
Pugh, Coleen

This research attempted to reduce the effect of Corrosion problem in petroleum sector by developing a new series of polymeric inhibitor and polymer nanocomposites coatings. A major aim of these studies was to synthesis a new series of hydroxy ester- amide monomers (N-(2- hydroxypropyl) methacrylamide, 4-((2-hydroxypropyl) amino)-4-oxobutyl methacrylate, 6-((2-hydroxypropyl) amino)-6-oxohexyl methacrylate and 2-((1-hydroxyethyl) carbamoyl) benzyl methacrylate), in addition to a series of ester- amide inimers (1-methacrylamidopropan-2-yl 4-(((butylthio)carbonothioyl)thio)- 4-cyanopentanoate inimer,1-(4-(methacryloyloxy)butanamido) propan-2-yl-4-(((butylthio) carbonothioyl) thio)-4-cyanopentanoate inimer (Butyramide Inimer), 1-(6-(methacryloyloxy) hexanamido)propan-2-yl-4(((butylthio) carbonothioyl) thio)- 4-cyanopentanoate inimer (Capramide Inimer) and 1-(2-((methacryloyloxy)methyl)benzamido) ethyl-4(((butylthio)carbonothioyl)thio)-4-cyanopentanoate inimer (Phthalamide Inimer). Then, the prepared monomers and inimers were polymerized using a controlled/ Living radical polymerization (CRP) by reversible addition fragmentation chain transfer (RAFT) polymerization (CRP-RAFT). The prepared polymers would provide new polymer nano composite coatings for petroleum pipelines based on hydroxy ester-amide type of polymers and graphene oxide material. The morphological characterizations of prepared materials were examined using high resolution transmission electron microscopy (HR-TEM). Polyhydroxy ester-amide linear polymers were used first as a corrosion inhibitor and its composites were used as pigments for anti-corrosive coatings, and the electrochemical investigations, the protection efficiency of the prepared coatings against carbon steel corrosion was studied using electrochemical techniques which are represented asbelectrochemical impedance spectroscopy (EIS) measurements.

Table of Content
Thesis (Ph.D.)-- Wichita State University, College of Liberal Arts and Sciences, Department of Chemistry and Biochemistry