Functionalization of poly(divinylbenzene) microspheres by combination of hydrobromination and click chemistry processes: A model study


Karagöz B., YÜKSEL DURMAZ Y., Gacal B., Bicak N., Yağcı Y.

Designed Monomers and Polymers, cilt.12, sa.6, ss.511-522, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 6
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1163/138577209x12478288343198
  • Dergi Adı: Designed Monomers and Polymers
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.511-522
  • Anahtar Kelimeler: Characterization, Click chemistry, Hydrobromination, Microspheres, Poly(divinylbenzene), Polymerization
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

Fluorescent pyrene-functional poly(divinylbenzene) (PDVB) cross-linked core microspheres were synthesized using the click chemistry strategy as a model study. First, the core monodisperse microspheres were prepared by precipitation polymerization using 2,2′-azobisisobutronitrile (AIBN) as initiator in acetonitrile in the absence of any stabilizer. Residual double bonds were converted to azide-functions by hydrobrominated with hydrogen bromide followed by azidation with NaN3 in DMF solution. Propargyl pyrene was prepared independently as a fluorescent click component. Finally, azide-functionalized microspeheres were coupled with propargyl pyrene with high efficiency by click chemistry. The modified PDVB microspheres are characterized by using FT-IR spectroscopy, UV-Vis absorption spectroscopy, fluorescence spectroscopy and fluorescence microscopy. © 2009 Koninklijke Brill NV, Leiden.