Structure-Function Insights into Thermoresponsive Copolymers as Lanthanide Precipitants DOI Creative Commons
Supraja S. Chittari, Peter Dykeman-Bermingham,

Matthew P. Bogen

et al.

Published: July 31, 2024

The synthetic toolbox for stimuli-responsive polymers has broadened to include many variables of tunable control, making these materials applicable in diverse technologies. However, unraveling the key composition-structure-function relationships facilitate ground-up design remains a challenge due inherent dispersity sequence and conformations polymers. We here present systematic study using model system copolymers with thermoresponsive (N-isopropylacrylamide) backbone addition metal-chelating (acrylic acid) hydrophobic structural comonomers evaluate their efficiency at isolation technologically critical lanthanide ions. ion extraction by precipitation was quantitated metallochromic dye reveal trends relating copolymer hydrophobicity improved separations. Further, we examined role different dictating solution-phase conformation polymer presence absence ions, identify features comonomer that influence efficiency. Finally, identified how local proximity thermoresponsive, chelating, subunits metal manipulating multiblock polymerization. Through mechanistic analysis, propose binding-then-assembly process through which ions are coprecipitated macromolecular chelators.

Language: Английский

Structure-Function Insights into Thermoresponsive Copolymers as Lanthanide Precipitants DOI Creative Commons
Supraja S. Chittari, Peter Dykeman-Bermingham,

Matthew P. Bogen

et al.

Published: July 31, 2024

The synthetic toolbox for stimuli-responsive polymers has broadened to include many variables of tunable control, making these materials applicable in diverse technologies. However, unraveling the key composition-structure-function relationships facilitate ground-up design remains a challenge due inherent dispersity sequence and conformations polymers. We here present systematic study using model system copolymers with thermoresponsive (N-isopropylacrylamide) backbone addition metal-chelating (acrylic acid) hydrophobic structural comonomers evaluate their efficiency at isolation technologically critical lanthanide ions. ion extraction by precipitation was quantitated metallochromic dye reveal trends relating copolymer hydrophobicity improved separations. Further, we examined role different dictating solution-phase conformation polymer presence absence ions, identify features comonomer that influence efficiency. Finally, identified how local proximity thermoresponsive, chelating, subunits metal manipulating multiblock polymerization. Through mechanistic analysis, propose binding-then-assembly process through which ions are coprecipitated macromolecular chelators.

Language: Английский

Citations

1