Design, synthesis and characterization of a pH-sensitive DS/GM hydrogel

Özenir, Zeynep; Demirbilek, Celile; Dinç, Cemile Özdemir

doi:10.1007/s13233-015-3144-8

Cited by 2 publications

(1 citation statement)

References 41 publications

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“…This reaction confirmed that sodium salt of sulfonic acid acts as catalyst to form ring opened products of epoxy groups cleanly in the presence of conjugated as well as isolated unsaturated bonds. Previously, sulfate groups (

{SO}_{4}^{2 -}

) have been reported to be involved in crosslinking reaction with hydroxy functional groups at 75 °C forming network structures . However, sulfonate mediated ring opening of epoxy groups along with the in situ gel formation has not been reported to the best of our knowledge.…”

Section: Resultsmentioning

confidence: 91%

Gel forming waterborne dispersion polymerization of sodium p‐styrene sulfonate with glycidyl methacrylate

Dsouza

Parthiban

2017

J. Polym. Sci. Part A: Polym. Chem.

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Water soluble monomer like sodium p-styrene sulfonate (SSS) is copolymerized with hydrophobic and reactive monomer glycidyl methacrylate (GMA). The polymerization proceeds as dispersion and forms gels. The gel forming nature prevails even with other hydrophobic and hydrophilic monomers to form ternary polymeric systems. The swelling is dependent on polymer composition as well as the treatment history of polymers. SSS also induces ring opening of GMA to form 1,2-diols as confirmed independently by various model reactions. The ability of hydrogels to absorb various dyes indicates that owing to the anionic nature, hydrogels absorb cationic dyes nearly quantitatively. Because of their strong affinity to cationic species these hydrogel forming polymers are potentially useful in water purification applications as well as purification of proteins.

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