Sulfonated poly (styrene-co-ethylene glycol dimethacrylate) with attractive ion exchange capacity

2018 ◽  
Vol 29 (11) ◽  
pp. 2759-2765 ◽  
Author(s):  
Thiago R. Theodoro ◽  
Joslaine R. Dias ◽  
Júlia L. Penariol ◽  
Juliana O.V. Moura ◽  
Leandro G. Aguiar
2020 ◽  
pp. 096739112091786
Author(s):  
Norhayati Abdullah ◽  
Rabiatul A. Mahmod ◽  
Rohayu Jusoh ◽  
Mohammad Dalour Hossent Beg ◽  
Muhammad Remanul Islam

Poly(methyl methacrylate- co-ethylene glycol dimethacrylate- co-vinylbenzyl chloride) microsphere was prepared by dispersion polymerization, initiated by light using water/ethanol mixture. The sulfonated hypercrosslinked (HXL) polymer resin was synthesized via three stages, namely, precursor synthesis (photoinitiated dispersion polymerization), post-polymerization after hypercrosslinking reaction, and post-polymerization before hypercrosslinking reaction. The optimized precursor was functionalized before the hypercrosslinking reaction to investigate its ion-exchange capacity, specific surface area (SSA), morphology, and thermal stability. Post-polymerization after hypercrosslinking reaction showed that the chlorine content and SSA are higher than post-polymerization before hypercrosslinking reaction. HXL reaction took place using Friedel–Crafts alkylation with the aid of FeCl3 catalyst. Lewis acid (FeCl3) also played a significant role which contributed to high SSA of the HXL polymer. The particles produced from photoinitiated dispersion polymerization have advantages and could be used in solid-phase extraction, drug delivery, and high-performance liquid chromatography.


RSC Advances ◽  
2020 ◽  
Vol 10 (22) ◽  
pp. 12810-12822 ◽  
Author(s):  
Miru Yoshida-Hirahara ◽  
Satoshi Takahashi ◽  
Masahiro Yoshizawa-Fujita ◽  
Yuko Takeoka ◽  
Masahiro Rikukawa

Poly(p-phenylene)-based sulfonated polymers with well-controlled IECs were synthesized via a three-step procedure including preceding sulfonation of precursor monomers.


2007 ◽  
Vol 544-545 ◽  
pp. 1065-1068 ◽  
Author(s):  
Dong Hoon Lee ◽  
Hye Suk Park ◽  
Dong Wan Seo ◽  
Tae Whan Hong ◽  
Whan Gi Kim

A series of sulfonated poly(aryl ether ketone)s were prepared by condensation polymerization with bisphenol A and 1,2-bis(4-fluorobenzoyl)-3,6-diphenylbenzene, and followed by sufonation with chlorosulfonic acid. The polymers were characterized by Fourier transform infra-red (FTIR) and ion exchange capacity (IEC) to verify sulfonation. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were carried out to investigate the thermal stability of the prepared membranes. The membranes were found to possess all the requisite properties; Ion exchange capacity (3.31meq./g), glass transition temperatures (207-230°C), and low affinity towards methanol (2.04x10-6-4.15x10-7 cm2/S).


1992 ◽  
Vol 57 (9) ◽  
pp. 1905-1914
Author(s):  
Miroslav Bleha ◽  
Věra Šumberová

The equilibrium sorption of uni-univalent electrolytes (NaCl, KCl) in heterogeneous cation exchange membranes with various contents of the ion exchange component and in ion exchange membranes Ralex was investigated. Using experimental data which express the concentration dependence of equilibrium sorption, validity of the Donnan relation for the systems under investigation was tested and values of the Glueckauf inhomogeneity factor for Ralex membranes were determined. Determination of the equilibrium sorption allows the effect of the total content of internal water and of the ion-exchange capacity on the distribution coefficients of the electrolyte to be determined.


2020 ◽  
Author(s):  
M. Cholid Djunaidi ◽  
Nor Basid Adiwibawa Prasetya ◽  
Didik Setiyo Widodo ◽  
Retno Ariadi Lusiana ◽  
Pardoyo

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