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王传奎
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期刊论文
A new multi-branched two-photon photopolymerization initiator: synthesis and non-linear optical properties of a 1,3,5-triazine-based octupolar molecule
Materials Chemistry and Physics 90(2005)139-143，-0001，（）：
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 cm4s 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.
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