Related Experiment Video
Updated: May 5, 2026
11:52
Microbubble Fabrication of Concave-porosity PDMS Beads
Published on: December 15, 2015
8.3K
An Exceptionally Salt Tolerant Copoly(Maleimide Sulfobetaine) - Structural Requirements for Ultra-Salt Tolerance
Srinivasulu Aitipamula1, Nanji J Hadia1,2, Vivek A Vasantha1,3
1Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1, Pesek Road, Jurong Island, Singapore, 627833, Singapore.
Macromolecular Rapid Communications
|October 4, 2024
Summary
Zwitterionic copolymaleimides exhibit unique salt-tolerant properties, unlike conventional zwitterionic polymers. Zwitterionic poly(ethylene-alt-maleimide) (ZI-PEMA) enhances salt saturation limits, offering industrial advantages.
Area of Science:
- Polymer Chemistry
- Materials Science
Background:
- Zwitterionic polymers, particularly poly(meth)acrylate and poly(meth)acrylamide types, have diverse applications.
- Conventional zwitterions show limited salt tolerance, expanding then shrinking in solution with increasing salt concentration, reducing viscosity.
Purpose of the Study:
- To investigate the salt-tolerant properties of zwitterionic copolymaleimides.
- To compare their behavior with conventional zwitterionic polymers.
Main Methods:
- Synthesis and characterization of zwitterionic copolymaleimides.
- Evaluation of polymer solution viscosity in varying salt concentrations.
- Assessment of salt saturation enhancement properties.
Main Results:
- Zwitterionic copolymaleimides demonstrate substituent-dependent salt tolerance.
- Zwitterionic poly(ethylene-alt-maleimide) (ZI-PEMA) shows increased viscosity with higher salt and polymer concentrations due to backbone rigidity.
- ZI-PEMA enhances the saturation limit for salts like sodium chloride and calcium bromide.
Conclusions:
- Zwitterionic copolymaleimides offer a novel approach to salt-tolerant polymer design.
- ZI-PEMA's unique properties are beneficial for industrial applications requiring high salt concentrations or density.
