Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/76733
Title: The effect of divalent ions to the phase behaviour of homogenous polyelectrolytes in solution
Authors: Heng, Michelle Jin Yee
Keywords: DRNTU::Engineering::Materials
Issue Date: 2019
Abstract: Studies performed on strong polyelectrolyte, sodium polystyrene sulfonate (NaPSS), show that their stability in presence of divalent counterions depends on the type of divalent cation used. The interactions of the polyelectrolyte with divalent counterions are of electrostatic origin and phase diagrams are weakly dependent on the polymer backbone nature (hydrophilic or hydrophobic, flexible of stiff) but instead depend on the speciality of cation and nature of charged groups (this report focuses on sulfonates). However, to obtain a clear understanding of the phase behaviour of polyelectrolytes with salts, this is made difficult by the limited experimental studies as well as the many of experimental parameters which can be adjusted such as pH, molecular weight, temperature, monomer structure, counterion/salt properties, etc. A few conclusions were made to better understand the system and explanation for them.
URI: http://hdl.handle.net/10356/76733
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:MSE Student Reports (FYP/IA/PA/PI)

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