Applicability of samarium(III) complexes for the role of luminescent molecular sensors for monitoring progress of photopolymerization processes and control of the thickness of polymer coatings
Authors:
- Monika Topa,
- Joanna Ortyl,
- Anna Chachaj-Brekiesz,
- Iwona Kamińska-Borek,
- Maciej Pilch,
- Roman Popielarz
Abstract
Applicability of 15 trivalent samarium complexes as novel luminescent probes for monitoring progress of photopolymerization processes or thickness of polymer coatings by the Fluorescence Probe Technique (FPT) was studied. Three groups of samarium(III) complexes were evaluated in cationic photopolymerization of triethylene glycol divinyl ether monomer (TEGDVE) and free-radical photopolymerization of trimethylolpropane triacrylate (TMPTA). The complexeswere the derivatives of tris(4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedionate) samarium(III), tris(4,4,4-trifluoro-1-phenyl-1,3-butanedionate)samarium(III) and tris(4,4,4-trifluoro-1-(2naphthyl)-1,3-butanedionate)samarium(III), which were further coordinated with auxiliary ligands, such as 1,10-phenanthroline, triphenylphosphine oxide, tributylphosphine oxide and trioctylphosphine oxide. It has been found that most of the complexes studied are sensitive enough to be used as luminescent probes for monitoring progress of cationic photopolymerization of vinyl ether monomers over entire range of monomer conversions. In the case of free-radical polymerization processes, the samarium(III) complexes are not sensitive enough to changes of microviscosity and/or micropolarity of the medium, so they cannot be used to monitor progress of the polymerization. However, high stability of luminescence intensity of some of these complexes under freeradical polymerization conditions makes them good candidates for application as thickness sensors for polymer coatings prepared by free-radical photopolymerization. A quantitative relationship between a coating thickness and the luminescence intensity of the samarium(III) probes has been derived and verified experimentallywithin a broad range of the thicknesses.
- Record ID
- CUT9f5a66597d854f8aa6457aae13cf9ade
- Publication categories
- ;
- Author
- Journal series
- Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, ISSN 1386-1425
- Issue year
- 2018
- Vol
- 199
- Pages
- 430-440
- Other elements of collation
- tab.; schem.; wykr.; Bibliografia (na s.) - 440; Bibliografia (liczba pozycji) - 33; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 199
- Keywords in English
- molecular probes, free-radical photopolymerization, cationic photopolymerization, reaction monitoring, luminescence spectroscopy, FPT, samarium complexes
- DOI
- DOI:10.1016/j.saa.2018.03.050 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S1386142518302452 Opening in a new tab
- Related project
- Organiczno-nieorganiczne luminescencyjne chemiczne sensory molekularne jako narzędzie do monitorowania oraz kontroli procesów fotopolimeryzacji on-line w produkcji powłok polimerowych. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Synteza bimolekularnych fotoinicjatorów kationowych i badania mechanistycznych aspektów fotogenerowania mocnych kwasów protonowych w procesach synergistycznego oddziaływania soli oniowych oraz fotosensybilizatorów lub koinicjatorów. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN]
- Organiczno-nieorganiczne luminescencyjne chemiczne sensory molekularne jako narzędzie do monitorowania oraz kontroli procesów fotopolimeryzacji on-line w produkcji powłok polimerowych. . Project leader at PK: , ,
- Language
- eng (en) English
- Score (nominal)
- 30
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT9f5a66597d854f8aa6457aae13cf9ade/
- URN
urn:pkr-prod:CUT9f5a66597d854f8aa6457aae13cf9ade
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.