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Laser ablation of poly(ethylene terephthalate)
Author(s) -
Watanabe Hirosuke,
Yamamoto Masahide
Publication year - 1997
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19970509)64:6<1203::aid-app21>3.0.co;2-v
Subject(s) - fluence , ethylene , ablation , materials science , excimer laser , fragmentation (computing) , laser ablation , photochemistry , poly ethylene , photodissociation , argon , laser , polymer chemistry , thermal , analytical chemistry (journal) , chemistry , optics , organic chemistry , physics , engineering , catalysis , meteorology , computer science , operating system , aerospace engineering
Laser ablation of a poly(ethylene terephthalate) (PET) film with an excimer laser beam, 248 nm, was analyzed by various analysis methods, and the mechanism was studied. The ablation was carried out in an argon gas atmosphere at room temperature. Produced gases and some fragments were collected and analyzed by GC‐MS. The photochemical fragmentation of PET through the Norrish type I reaction was dominant, but above the threshold fluence, ca. 30 mJ/cm 2 , thermal reactions such as cyclic oligomerization occurred and photochemical fragmentation was accelerated by the thermal energy. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1203–1209, 1997