Hydrophobically associating polyacrylamide derivatives with double bond for enhanced solution properties

Abstract

A hydrophobically associating polyacrylamide with double bond P (AM‐MAA‐AMPS‐HDDE‐SA) (PAMAHS) has been synthesized by micellar copolymerization technique in mixed solvents (anhydrous ethanol and distilled water (1:10 by volume)) and characterized. The morphology and microstructure of PAMAHS copolymer observations show the formation of multilayer network‐like stacked structure, and the dissolution property and temperature resistance of the copolymer measurements show that PAMAHS has a good solubility and exhibits unique solution behavior. Due to the hydrophobic associations, the solution viscosity increases sharply when the polymer concentration exceeds a certain value. AFM confirms the existence of the polymer network structure in aqueous solution, and the enhancement of thermal stability of polymer is affirmed through TGA. Compared with the unmodified P (AM‐MAA‐AMPS‐SA) (PAMAS) copolymer, PAMAHS incorporation of capsaicin‐like monomer with biological activity is endowed with excellent antibacterial performance against Escherichia coli and Staphylococcus aureus. POLYM. ENG. SCI., 56:1203–1212, 2016. © 2016 Society of Plastics Engineers

Investigation of polyacrylamide containing capsaicin monomer as a novel corrosion inhibitor for mild steel in hydrochloric acid

“…The molecular structure of PAMAHS is shown in Figure . The structure of the copolymer was confirmed by infrared spectrogram and NMR‐H spectrum in a previous work published by our group . Other reagents for the analysis were analytical grade.…”

“…The structure of the copolymer was confirmed by infrared spectrogram and NMR-H spectrum in a previous work published by our group. [21] Other reagents for the analysis were analytical grade. The corrosive medium was 1 M hydrochloric acid solution.…”

“…However, the poor solubility of most polymeric materials in an aqueous medium has highly limited their applications as corrosion inhibitors. P(AM‐MAA‐AMPS‐HDDE‐SA) [AM = Acrylamide, MAA = Methacrylic acid, AMPS = 2‐acrylamido‐2‐methylpropane‐sulfonic acid, HDDE = N, N′‐((2‐hydroxy‐4, 5‐dimethylbenzene‐1, 3‐diyl) dimethanediyl) bisprop‐2‐enamide, SA = stearyl acrylate] (PAMAHS), which contains capsaicin active monomers, was synthesized in our laboratory and has good solubility . The copolymer has been proved to exhibit excellent performance in enhancing oil recovery .…”

“…P(AM-MAA-AMPS-HDDE-SA) [AM = Acrylamide, MAA = Methacrylic acid, AMPS = 2-acrylamido-2methylpropane-sulfonic acid, HDDE = N, N′-((2-hydroxy-4, 5-dimethylbenzene-1, 3-diyl) dimethanediyl) bisprop-2enamide, SA = stearyl acrylate] (PAMAHS), which contains capsaicin active monomers, was synthesized in our laboratory and has good solubility. [21] The copolymer has been proved to exhibit excellent performance in enhancing oil recovery. [19,20] The nitrogen, oxygen, and benzene rings in its molecular structure provide the possibility of PAMAHS being used as a novel corrosion inhibitor.…”

Novel, rosin‐based, hydrophobically modified cationic polyacrylamide for kaolin suspension flocculation

“…Hydrophobically modified cationic polyacrylamide (HMPAM), in which a small amount of hydrophobic monomers (<2 mol %) is copolymerized in the polyacrylamide backbone, can improve the rheological properties of its aqueous solution. 17 At high concentrations, hydrophobic groups form intermolecular interactions in aqueous solution via the hydrophobic associations of hydrophobic groups, and these produce a transient network to provide a viscosity-building capacity. 18,19 In the flocculation process, a strong hydrophobic association formed between the flocs via HMPAM intermolecular interactions, charge neutralization, and bridging absorption to improve the flocculation performance.…”