UV degradation of poly(methyl methacrylate) and its vinyltriethoxysilane containing copolymers


Caykara T., Guven O.

POLYMER DEGRADATION AND STABILITY, cilt.65, sa.2, ss.225-229, 1999 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 65 Konu: 2
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1016/s0141-3910(99)00008-7
  • Dergi Adı: POLYMER DEGRADATION AND STABILITY
  • Sayfa Sayıları: ss.225-229

Özet

The photodegradation of poly(methyl methacrylate) (PMMA) and vinyltriethoxysilane (VTES)-methyl methacrylate (MMA) copolymer films was studied by UV irradation (lambda = 259 nm). Evidence for the photodegradation of PMMA and copolymers was found in the different FT-IR and UV-VIS spectra. The scission of ester side-groups of PMMA were determined by using FT-IR and UV-VIS difference spectra. However, in the same process of the copolymers, both scission of the ester side-groups and crosslinking occur simultaneously. It is observed that UV irradation causes changes of the mechanical properties of PMMA and copolymers. (C) 1999 Elsevier Science Ltd. All rights reserved.