The Influence of pH/Salt Concentrations on Tuning Lower Critical Solution Temperature of Poly(NIPAAm-co-DMAA-co-DTBAVA) Multi-Environmentally Terpolymer

New series of thermo-pH multi-responsive terpolymers were fabricated. Cationic acrylate monomer was synthesized and named by [2-((ditert-butylamino)methyl)-4-formyl-6-methoxyphenyl acrylate] abbreviated as (DTBAVA). 1H NMR 13C investigated the new compounds FT IR. The fabricated free radical polymerization N-isopropylacrylamide NIPAAm, 10 mol% N, N-dimethylacrylamide 5, 10, 20 DTBAVA. investigation process involved chemical method such IR; physical methods for solid glass temperature DSC, polymer degradation TGA, crystallinity via XRD. GPC performed molecular weights dispersity; contact angles identifying hydrophilic or hydrophobic solutions. lower critical solution temperatures Tc,s, cloud points Cp,s recorded considering impact pH solutions concentrations different sodium salts (SO4?2, Cl?1, SCN?1) in Hofmeister series; turbidity measurements used UV/vis spectroscopy micro-DSC. In a optimization study, we will use these post-polymerization with biomolecules chitosan, protein, amino acids Schiff base.