The Synthesis of Water Soluble Cationic Microgels by Dispersion Polymerization: Their Performance in Kaolin Deposition Onto Fiber

ONDARAL S., USTA M., GÜMÜŞDERELİOĞLU M., ARSU N., Balta D. K.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.116, sa.2, ss.1157-1164, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 116 Sayı: 2
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1002/app.31665
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1157-1164
  • Anahtar Kelimeler: water soluble cationic microgels, dispersion polymerization, clay deposition, acrylamide, diallyldimethylammonium chloride, MONODISPERSE POLYACRYLAMIDE PARTICLES, SIZED POLYSTYRENE PARTICLES, AMMONIUM-SULFATE, AQUEOUS-SOLUTION, ACRYLAMIDE, FLOCCULATION, COPOLYMERIZATION, POLYELECTROLYTES, CHLORIDE
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

The water soluble cationic microgels (CMG), intramolecularly cross-linked cationic polymers of acrylamide (Am) and diallyldimethylammonium chloride (DADMAC), were synthesized with dispersion polymerization in the mixture of tert-butanot (TBA)/water in the presence N,N'-methylene-bisacrylamide (MBA) as the cross-linker, poly(N-vinylpyrrolidone (PVP) as the stabilizer and 2,2'-azobisisobutyronitrile (AIBN) as the initiator. The effects of monomer, cross-linker, initiator, and stabilizer concentration on both particle size and molecular weight of CMG were investigated. The well dispersed polymer particles were produced in the range of poly dispersity index 1.1-1.4 and the molecular weight distribution with bimodal. Additionally, the efficiencies of two CMGs in the clay deposition on the bleached kraft fibers were investigated and compared with commercially widely used cationic polyacrylamide (CPAM) and poly-diallyldimethylammonium chloride (poly-DADMAC). The experiments showed that the CMGs were found as the effective flocculation agents and their efficiencies depended on their molecular weight and charge density. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 116: 1157-1164, 2010

The water soluble cationic microgels (CMG), intramolecularly cross-linked cationic polymers of acrylamide (Am) and diallyldimethylammonium chloride (DADMAC), were synthesized with dispersion polymerization in the mixture of tert-butanol (TBA)/water in the presence N,N′-methylene-bisacrylamide (MBA) as the cross-linker, poly(N-vinylpyrrolidone (PVP) as the stabilizer and 2,2′-azobisisobutyronitrile (AIBN) as the initiator. The effects of monomer, cross-linker, initiator, and stabilizer concentration on both particle size and molecular weight of CMG were investigated. The well dispersed polymer particles were produced in the range of poly dispersity index 1.1–1.4 and the molecular weight distribution with bimodal. Additionally, the efficiencies of two CMGs in the clay deposition on the bleached kraft fibers were investigated and compared with commercially widely used cationic polyacrylamide (CPAM) and poly-diallyldimethylammonium chloride (poly-DADMAC). The experiments showed that the CMGs were found as the effective flocculation agents and their efficiencies depended on their molecular weight and charge density