TY - JOUR
T1 - Resonant infrared pulsed laser deposition of thin biodegradable polymer films
AU - Bubb, D.M.
AU - Toftmann, B.
AU - Haglund Jr., R.F.
AU - Horwitz, J.S.
AU - Papantonakis, M.R.
AU - McGill, R.A.
AU - Wu, P.W.
AU - Chrisey, D.B.
PY - 2002
Y1 - 2002
N2 - Thin films of the biodegradable polymer poly(DL-lactide-co-glycolide) (PLGA) were deposited using resonant infrared pulsed laser deposition (RIR-PLD). The output of a free-electron laser was focused onto a solid target of the polymer, and the films were deposited using 2.90 (resonant with O-H stretch) and 3.40 (C-H) mum light at macropulse fluences of 7.8 and 6.7 J/cm(2), respectively. Under these conditions, a 0.5-mum thick film can be grown in less than 5 min. Film structure was determined from infrared absorbance measurements and gel permeation chromatography (GPC). While the infrared absorbance spectrum of the films is nearly identical with that of the native polymer, the average molecular weight of the films is a little less than half that of the starting material. Potential strategies for defeating this mass change are discussed.
AB - Thin films of the biodegradable polymer poly(DL-lactide-co-glycolide) (PLGA) were deposited using resonant infrared pulsed laser deposition (RIR-PLD). The output of a free-electron laser was focused onto a solid target of the polymer, and the films were deposited using 2.90 (resonant with O-H stretch) and 3.40 (C-H) mum light at macropulse fluences of 7.8 and 6.7 J/cm(2), respectively. Under these conditions, a 0.5-mum thick film can be grown in less than 5 min. Film structure was determined from infrared absorbance measurements and gel permeation chromatography (GPC). While the infrared absorbance spectrum of the films is nearly identical with that of the native polymer, the average molecular weight of the films is a little less than half that of the starting material. Potential strategies for defeating this mass change are discussed.
KW - 6-I optik
U2 - 10.1007/s003390101010
DO - 10.1007/s003390101010
M3 - Journal article
SN - 0947-8396
VL - 74
SP - 123
EP - 125
JO - Applied Physics A: Materials Science & Processing
JF - Applied Physics A: Materials Science & Processing
IS - 1
ER -