(HDI), polycaprolactone diol (PCL-OH, Mn ∼ 2000 g mol–1), pyromellitic dianhydride (PMD), dibutyltin dilaurate (DBTDL),
ethanolamine, zirconium oxychloride octahydrate (ZrCl2·8H2O), 2-aminoterepthalic acid (ATPA), octanoic acid, sodium
hydroxide, acetic acid, trichloro(octadecyl)silane (OTS), dimethyl
formamide (DMF), chloroform, acetone, toluene, isopropanol, hexane,
and silicone oil (20, 100, 500, and 1000 cSt) were purchased from
Sigma-Aldrich. 1,5-Diisocyanatonaphthalene (NDI) was purchased from
Tokyo Chemical Industry UK Ltd. All the chemicals were used without
further purification. Commercial NeverWet coating components, used
as a control for comparison, were obtained from the Rust-Oleum.