Uv Polymerization of Poly (N-Isopropylacrylamide) Hydrogel

Manja Kurečič*, Majda Sfiligoj Smole, Karin Stana Kleinschek

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This contribution is focused on the determination of polymerization and crosslinking mechanism of poly (N-isopropylacralymide) hydrogel and its swelling properties. Hydrogels were synthesized by environmental friendly UV polymerization method, from monomer N-isopropylacrylamide (NIPAM) and crosslinker N,N'-methylenebisacrylamide (BIS) of different concentrations. UV polymerization was performed in an UV chamber using UVA light with the wave length 350 nm. Surface morphology and pore structure analysis was carried out using SEM microscopy. The polymerization and crosslinking mechanism was determined by Fourier Transform Infrared spectroscopy (FT-IR). It was confirmed that crosslinker concentration influences the hydrogel structure and swelling properties. By increasing the crosllinker concentration the hydrogel structure changes from homogen to heterogen and the equilibrium degree of swelling decreases.

Original languageEnglish
Pages (from-to)87-91
Number of pages5
JournalMateriali in Tehnologije / Materials and Technology
Issue number1
Publication statusPublished - 1 Jan 2012
Externally publishedYes


  • FTIR
  • Poly (n-isopropylacrylamide) hydrogel
  • Polymerization mechanism
  • SEM
  • Swelling properties
  • UV polymerization

ASJC Scopus subject areas

  • Polymers and Plastics
  • Metals and Alloys

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