Preparation of hydrogels by photopolymerization of acrylates in the presence of Type I and one-component Type II photoinitiators

Karaca N., Temel G., Balta D., AYDIN M., ARSU N.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, cilt.209, sa.1, ss.1-6, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 209 Sayı: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.jphotochem.2009.09.017
  • Dergi Adı: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-6
  • Anahtar Kelimeler: Free radical polymerization, Hydrogel, Photo polymerization, Type II photoinitiator, FREE-RADICAL POLYMERIZATION, ACID, SYSTEMS
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Hydrogels were prepared by photoinduced polymerization of poly(ethylene glycol)monoacrylate (PEGMA) and poly(ethylene glycol)diacrylate (n=200 and 700) (PEGDA) with Type 1, 1-[4-(2hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1-one (1-2959) and one-component Type 11 initiators: (9-oxo-9H-thioxanthen-2-yloxy)-acetic acid (TXOCH2COOH) and (9-oxo-9H-thioxanthen-2yloxy)-sodium acetate (TXOCH2COO-Na+). The swelling properties of hydrogels were investigated and observed to be excellent. Smooth morphology and no phase separation were observed from SEM micrographs of the hydrogels. (C) 2009 Elsevier B.V. All rights reserved.