Synthesis, characterization and cell selectivity of poly(quaternary ammonium chlorides): effect of the degree of quaternization and copolymer composition

Rusli, Wendy; Halleluyah, Periayah Mercy; Jun, Loh Xian; Lakshminarayanan, Rajamani; Parthiban, Anbanandam

doi:10.1039/d3ma00661a

Mater. Adv.

2023

DOI: 10.1039/d3ma00661a

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Synthesis, characterization and cell selectivity of poly(quaternary ammonium chlorides): effect of the degree of quaternization and copolymer composition

Wendy Rusli,

Periayah Mercy Halleluyah,

Loh Xian Jun

et al.

Abstract: Antimicrobial resistance is a global problem due to widespread evolution of resistant pathogens in both health care and community. Polymeric quaternary ammonium and imidazolium chlorides are well known for their...

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2024

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An Exceptionally Salt Tolerant Copoly(Maleimide Sulfobetaine) – Structural Requirements for Ultra‐Salt Tolerance

Aitipamula,

Hadia,

Vasantha

et al. 2024

Macromol. Rapid Commun.

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Zwitterionic polymers are an important class of polymers with far‐ranging applications. In the widely studied poly(meth)acrylate and poly(meth) acrylamide‐based zwitterions, properties can be tuned by changing the nature of substituents attached to ammonium ions. However, these changes influenced salt tolerance of zwitterionic polymers only to a limited extent. Upon adding salt these polymers expanded in solution initially. Further increase in salt concentration caused the polymer chains to shrink similar to the common water soluble, uncharged polymers thereby deteriorating the viscosity of aqueous solutions. In contrast to the conventional poly(meth)acrylate and poly(meth)acrylamide‐based zwitterions, zwitterionic copolymaleimides showed substituent dependent salt‐tolerant nature. In the absence of any substituent on the polymer backbone such as zwitterionic poly(ethylene‐alt‐maleimide) (ZI‐PEMA) the viscosity of salt solutions increased both with the increasing salt concentration as well as the concentration of polymer. This is likely due to the continuous expansion of polymer coil in salt solutions with increasing salt concentration caused primarily by the rigidity of the polymer backbone. ZI‐PEMA also enhanced the saturation limit of mono‐ and divalent salts like sodium chloride and hydrated calcium bromide in water. This property is useful for various applications like fish curing, for making high‐density fluids, refrigeration, etc. across various industrial sectors.

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An Exceptionally Salt Tolerant Copoly(Maleimide Sulfobetaine) – Structural Requirements for Ultra‐Salt Tolerance

Aitipamula,

Hadia,

Vasantha

et al. 2024

Macromol. Rapid Commun.

View full text Add to dashboard Cite

show abstract

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Synthesis, characterization and cell selectivity of poly(quaternary ammonium chlorides): effect of the degree of quaternization and copolymer composition

Abstract: Antimicrobial resistance is a global problem due to widespread evolution of resistant pathogens in both health care and community. Polymeric quaternary ammonium and imidazolium chlorides are well known for their...

Cited by 1 publication

References 55 publications

An Exceptionally Salt Tolerant Copoly(Maleimide Sulfobetaine) – Structural Requirements for Ultra‐Salt Tolerance

An Exceptionally Salt Tolerant Copoly(Maleimide Sulfobetaine) – Structural Requirements for Ultra‐Salt Tolerance

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