A new multi-branched two-photon photopolymerization initiator: synthesis and non-linear optical properties of a 1,3,5-triazine-based octupolar molecule

Autor:	Yan Ren, Xian Zhao, Yuan-Hong Sun, Yun-Xing Yan, Yongzhong Wu, Xutang Tao, Guibao Xu, Chuan-Kui Wang, Minhua Jiang, Jiaxiang Yang
Rok vydání:	2005
Předmět:	Materials science Chromophore Condensed Matter Physics Photochemistry Two-photon absorption chemistry.chemical_compound Photopolymer 1 3 5-Triazine chemistry Femtosecond Sapphire Molecule General Materials Science Absorption (electromagnetic radiation)
Zdroj:	Materials Chemistry and Physics. 90:139-143
ISSN:	0254-0584
DOI:	10.1016/j.matchemphys.2004.10.020
Popis:	A new multi-branched two-photon photopolymerization initiator, tris-(4-{2-[4-(2-pyridin-4-yl-vinyl)-phenyl]-vinyl}-phenyl)-amine (abbreviated to TPVPA) has been synthesized and characterized. The experimental results confirmed that TPVPA is a good two-photon absorbing chromophore and operative two-photon photopolymerization initiator. The calculated two-photon absorption cross-section of TPVPA is 42.4 × 10 −50 cm 4 s photon −1 . A microstructure using TPVPA as initiator has been fabricated under irradiation of a Ti:sapphire femtosecond laser at 830 nm. The possible photopolymerization mechanism is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::957e6414fa94020e6e399d6b11f0f5c1 https://doi.org/10.1016/j.matchemphys.2004.10.020 Zobrazit plný text záznamu Full Text from ScienceDirect