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- W2381495326 abstract "The nonlinear optical chromophoric group substituted acetylene,3｛4-[4′-nitro-azobenzene-4-(N-methyl,N-ethenoxy carbonyl)]benzene-oxy｝-1-propyne(PBNAA),was synthesized using 1,3-dicyclohexylcarbodiimide and p-dimethyaminopyridine as catalysts and polymerized by [Rh(nbd)Cl]_2 as catalyst.A functional polyacetylene(poly(PBNAA)) with high molecular weight was prepared.Its optical limiting property of poly(PBNAA) in THF solution was studied.In the low fluence region,the poly(PBNAA) solution with a concentration of 0.60×10~3mg/L exhibites a high linear transmittance(78%) and the transmitted fluence linearly increases with the incident fluence.In the high fluence(105.4GW/cm~2).With further increasing the incident fluence,the transmitted fluence reaches a plateau and saturated at 197.8GW/cm~2.Simutaneously,it is found that the optical limiting properties was enhanced with the increase of solution concentration.The limiting mechanism of poly(PBNAA) was investigated,showing that the optical limiting in poly(PBNAA) solution to the laser with 1064nm wavelength and 40ps pulses width mainly originates from the two-photon absorption of poly(PBNAA) molecules." @default.
- W2381495326 created "2016-06-24" @default.
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- W2381495326 date "2006-01-01" @default.
- W2381495326 modified "2023-09-25" @default.
- W2381495326 title "Preparation and optical limiting properties of functional polyacetylene (poly(PBNAA))" @default.
- W2381495326 hasPublicationYear "2006" @default.
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