Synthesis and evaluation of a novel fluorinated poly(hexafluoroisopropyl methacrylate) polymer coating for corrosion protection on aluminum alloy was written by Yaseen, Waleed K.;Marpu, Sreekar B.;Golden, Teresa D.;Omary, Mohammad A.. And the article was included in Surface and Coatings Technology in 2020.Formula: C7H6F6O2 The following contents are mentioned in the article:
The hydrophobic and corrosion resistive film of cross-linked poly(hexafluoroisopropyl methacrylate) was successfully prepared by a simple photopolymerization method. The starting materials were a monomer of 1,1,1,3,3,3-hexafluoroisopropyl methacrylate, a photoinitiator of hydroxycyclohexyl Ph ketone, and a crosslinker of poly(ethylene glycol diacrylate). A very simple coating technique of drop-casting was used to deposit the fluorinated polymer onto an aluminum alloy substrate (AA 3003). The polymer coating was stable over a 60-day period when exposed to an aqueous solution of 3.5% NaCl as measured by open circuit potential technique. The fluorinated polymer coating had high corrosion protection when measured by potentiodynamic polarization with a reduction of 90% in the corrosion c.d. for the polymer-coated aluminum alloy over the bare substrate. The corrosion c.d. decreased to 0.065μA/cm2 for the aluminum alloy coated with the polymer film compared to 0.708μA/cm2 for uncoated aluminum alloy. Fourier-transform IR spectroscopy was used to monitor the polymerization process. The dynamic contact angle technique was used to measure the hydrophobicity for the fluorinated polymer coating and increased from 65° to 100° for the uncoated and coated substrate, resp. Contact angle measurements before and after treatment with strong acid were carried out to confirm the chem. resistance of the polymer coating. The thermal stability of the fluorinated polymer was measured using thermogravimetric anal. This study involved multiple reactions and reactants, such as 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3Formula: C7H6F6O2).
1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Formula: C7H6F6O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics