MOLECULAR-WEIGHT EFFECTS ON THE 248-NM PHOTOABLATION OF POLYSTYRENE SPUN FILMS

Authors
LEMOINE P BLAU W DRURY A KEELY C
Citation
P. Lemoine et al., MOLECULAR-WEIGHT EFFECTS ON THE 248-NM PHOTOABLATION OF POLYSTYRENE SPUN FILMS, Polymer, 34(24), 1993, pp. 5020-5028
Citations number
41
Categorie Soggetti
Polymer Sciences
Journal title
Polymer → ACNP
ISSN journal
00323861
Volume
34
Issue
24
Year of publication
1993
Pages
5020 - 5028
Database
ISI
SICI code
0032-3861(1993)34:24<5020:MEOT2P>2.0.ZU;2-5
Abstract
Photoablation of spun polystyrene films was studied at 248 nm. The etc hing occurs on a submicrosecond time-scale, is strongly intensity depe ndent and is preceded by an incubation period. The chemical and photoc hemical properties of the polymer are not affected by its molecular we ight, However the molecular weight changes the incubation behaviour of the samples. This last result is analysed as a physical effect in ter ms of the volume changes brought about by the ablation process.