1,2-diketones promoted degradation of poly(epsilon-caprolactone)

Journal Article · Wed Jul 11 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4738441· OSTI ID:22069038

Danko, Martin; Borska, Katarina; Ragab, Sherif Shaban; Janigova, Ivica; Mosnacek, Jaroslav ^[1]

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1. Polymer Institute, Center of Excellence GLYCOMED, Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava (Slovakia)

Photochemical reactions of Benzil and Camphorquinone were used for modification of poly({epsilon}-caprolactone) polymer films. Photochemistry of dopants was followed by infrared spectroscopy, changes on polymer chains of matrix were followed by gel permeation chromatography. Benzoyl peroxide was efficiently photochemically generated from benzyl in solid polymer matrix in the presence of air. Following decomposition of benzoyl peroxide led to degradation of matrix. Photochemical transformation of benzil in vacuum led to hydrogen abstraction from the polymer chains in higher extent, which resulted to chains recombination and formation of gel. Photochemical transformation of camphorquinone to corresponding camphoric peroxide was not observed. Only decrease of molecular weight of polymer matrix doped with camphorquinone was observed during the irradiation.

• OSTI ID: 22069038
• Journal Information: AIP Conference Proceedings, Vol. 1459, Issue 1; Conference: 6. international conference on times of polymers (TOP) and composites, Ischia (Italy), 10-14 Jun 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
BENZOYL PEROXIDE
DECOMPOSITION
DOPED MATERIALS
GEL PERMEATION CHROMATOGRAPHY
GELS
INFRARED SPECTRA
IRRADIATION
KETONES
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
POLYMERS
RADIATION EFFECTS
RECOMBINATION
SOLIDS