Two novel two-photon polymerization initiators with extensive application prospects
2004 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 388, no 4-6, 325-329 p.Article in journal (Refereed) Published
Two novel two-photon polymerization initiators, 10-ethyl-3-E-(4-(N,N′-di-n-butylamino)styryl)phenothiazine 5 and 10-ethyl-3,7-E,E-bis(4-(N,N′-di-n-butyl amino)styryl)phenothiazine 6, have been efficiently synthesized with room temperature solid phase Wittig reaction. Two initiators were found to exhibit good single-photon fluorescence emission and their quantum yields, lifetimes and solvent effects have been studied in detail. Two-photon fluorescence spectra were investigated under 800 nm fs laser pulse and two-photon absorption (TPA) cross-sections of the initiators have been evaluated by theoretical calculation.Two-photon initiating polymerization microfabrication experiments have been carried out and artificial defects were made and polymerization mechanism was also discussed.
Place, publisher, year, edition, pages
Elsevier, 2004. Vol. 388, no 4-6, 325-329 p.
IdentifiersURN: urn:nbn:se:liu:diva-90645DOI: 10.1016/j.cplett.2004.02.099OAI: oai:DiVA.org:liu-90645DiVA: diva2:614026