Crosslinked poly(styrenesulfonamide) with iminoacetic acid chelating groups for hard-water treatment

Bicak, N; Senkal, Bahire; YARBAS, T

doi:10.1002/(sici)1521-3935(19981201)199:12<2731::aid-macp2731>3.0.co;2-u

Crosslinked poly(styrenesulfonamide) with iminoacetic acid chelating groups for hard-water treatment

Atıf İçin Kopyala

Bicak N., Senkal B. F., YARBAS T.

MACROMOLECULAR CHEMISTRY AND PHYSICS, cilt.199, sa.12, ss.2731-2735, 1998 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 199 Sayı: 12
Basım Tarihi: 1998
Doi Numarası: 10.1002/(sici)1521-3935(19981201)199:12<2731::aid-macp2731>3.0.co;2-u
Dergi Adı: MACROMOLECULAR CHEMISTRY AND PHYSICS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.2731-2735
İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

Chlorosulfonated polystyrene-DVB (10%) copolymer (in beads form, 720-840 mu m) has been modified with triethylenetetramine (TETA) to ave the corresponding polymeric sulfonamide. By treating with the potassium salt of chloroacetic acid in water, amino groups of the polymer have been carboxymethylated almost quantitatively. The resulting: material with iminoacetic acid pendant groups has very efficient chelating ability for Ca(II) and Mg(II) ions in ppm levels. The chelating polymer can be regenerated ten times by acid leaching without losing its original reactivity. It is suitable for removal of calcium and magnesium ions to supply soft water.