Title :
Femtosecond laser modification of poly(methyl methacrylate): Photochemistry
Author :
Baum, A. ; Scully, P.J. ; Basanta, M. ; Thomas, C. L P ; Fielden, P.R. ; Goddard, N.J. ; Perrie, W.
Author_Institution :
Sch. of Chem. Eng. & Anal. Sci., Univ. of Manchester, Manchester
Abstract :
Femtosecond, sub-ablation threshold UV photo-modification of poly(methyl methacrylate) is explored. Volatile fragment analysis (thermal desorption gas chromatography - mass spectrometry) and molecular weight distribution monitoring (size exclusion chromatography) suggest direct backbone cleavage and monomer formation.
Keywords :
chromatography; high-speed optical techniques; laser ablation; mass spectroscopy; photochemistry; polymers; direct backbone cleavage; femtosecond laser modification; molecular weight distribution monitoring; monomer formation; photochemistry; poly(methyl methacrylate); subablation threshold UV photomodification; thermal desorption gas chromatography mass spectrometry; volatile fragment analysis; Chemical lasers; Gas lasers; Laser ablation; Laser theory; Laser transitions; Optical pulses; Photochemistry; Polymers; Refractive index; Ultrafast optics; (160.5470) Polymers; (350.3390) Laser Material Processing; (350.3450) Laser-induced chemistry;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4627902
