Degradation of Poly(2-hydroxyethyl methacrylate) Obtained by Radiation in Aqueous Solution

Varguen E., Usanmaz A.

JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY, vol.47, no.9, pp.882-891, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 9
  • Publication Date: 2010
  • Doi Number: 10.1080/10601325.2010.501304
  • Journal Name: JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.882-891
  • Keywords: PHEMA, radiation, degradation, TGA-FTIR, mass spectroscopy, 2-HYDROXYETHYL METHACRYLATE, THERMAL-DEGRADATION, POLYMERIZATION, HYDROGELS, NETWORKS, PRODUCTS, BEHAVIOR, ATRP
  • Middle East Technical University Affiliated: Yes

Abstract

The degradation of poly(hydroxyethyl methacrylate), PHEMA obtained by -radiation induced polymerization of HEMA in aqueous solution, was studied. The polymer was a gel type and insoluble in common organic solvents. The DSC thermogram of the polymer gave a Tg value at 88.2 degrees C and an endothermic peak showed further polymerization or crosslinking at 110-160 degrees C. The degradation observed in TGA was a depolymerization type. However, the FT-IR of TGA fragments showed no monomer, which was degraded further. The degradation of monomer was studied by the GC-MS method. Similar results were also observed.