PHYSICOCHEMICAL CHARACTERIZATION OF THE EFFECT OF EXCIMER-LASER IRRADIATION ON PMMA THIN-FILMS

Authors
BEAUVOIS S RENAUT D LAZZARONI R LAUDE LD BREDAS JL
Citation
S. Beauvois et al., PHYSICOCHEMICAL CHARACTERIZATION OF THE EFFECT OF EXCIMER-LASER IRRADIATION ON PMMA THIN-FILMS, Applied surface science, 110, 1997, pp. 218-221
Citations number
11
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical","Materials Science, Coatings & Films
Journal title
Applied surface science → ACNP
ISSN journal
01694332
Volume
110
Year of publication
1997
Pages
218 - 221
Database
ISI
SICI code
0169-4332(1997)110:<218:PCOTEO>2.0.ZU;2-1
Abstract
We study the cross-linking process taking place in poly(methylmethacry late) upon irradiation at 248 nm with an excimer laser. The physical a nd chemical properties of the irradiated polymer are traced with FTIR spectroscopy, UV-visible spectrophotometry, and differential scanning calorimetry. In particular, the evolution of the glass transition temp erature is examined as a function of the total energy deposited on the polymer surface. It appears that there occurs a competition between a cross-linking reaction and a photodegradation reaction.