Poly(N-hydroxyethyl acrylamide)-b-Polystyrene by Combination of ATRP and Aminolysis Processes

Güneş D., Kurtarel O. B., Bicak N.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.127, sa.4, ss.2684-2689, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 127 Sayı: 4
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1002/app.37604
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2684-2689
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Block copolymers of very hydrophilic poly(N-hydroxyethyl acrylamide) (PHEAA) with polystyrene (PS) were successfully synthesized by sequential atom transfer radical polymerization of ethyl acrylate (EA) and styrene monomers and subsequent aminolysis of the acrylic block with ethanolamine. Quantitative aminolysis of poly(ethyl acrylate) (PEA) block yielded poly(N-hydroxyethyl acrylamide)-b-polystyrene in well-defined structures, as evidenced by Fourier transform infrared spectroscopy (FTIR) and H-1-NMR spectroscopy techniques. Three copolymers with constant chain length of PHEAA (degree of polymerization: 80) and PS blocks with 21, 74, and 121 repeating units were prepared by this method. Among those, the block copolymer with 21 styrene repeating units showed excellent micellation behavior in water without phase inversion below 100 degrees C, as inferred from dynamical light scattering, environmental scanning electron microscopy, and fluorescence measurements. (C) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 127: 2684-2689, 2013