 Wysłany: Nie 10:55, 13 Lut 2011 Temat postu: uggs nederland Add salt to the sulfonic acid group |
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| Add salt to the sulfonic acid groups within the polyelectrolyte molecules and intermolecular fluorescence of non-radiative energy transfer
insmaR. eta1. . Phys. Rev. Lett. [J]. 1997,78 f2477-24801, 153WinklerR. G. . GoldM. . ReinekerP. . Phys. Rev. Lett. [J], 1998.80; 3731-3734EffectsofAddedSaltsonIntra. . andInter. -MolecularF! UorescenceNRETofSulfonatePOlyelectrOlytesSUNQi-Long,uggs nederland, WANGChao-Yang, RENBi-Ye, LIUXin-Xing, ZENGFang,Tory Burch Shoes, LIUPing,tory burch outlet, TONGZhen (ResearchInstituteofMaterialsScience. SouthChinaUniversityofTechnology.Guangzhou510640, China) AbstractNaphthaleneandpyrenesinglyanddoublylabeledpolyelectrolyteswerepreparedbyradicalcopolymerizationof2 a acrylamido-2 a methylpropanesulfonicacid (AMPS) from5% to99% (molarfraction) andN, N-dimethylacrylamidewiththelabelmonomers. Fluorescencenonradiativeenergytransfer (NRET) wasmeasuredinNaC1andCaC12aqueoussolutionsuptotheconcentrationof6 × 10_. mol / L. Intra - andinter ·-molecularNRETdeterminedwithdoublylabeledsamplesandmixturesofsinglylabeledsamplesindicatedthatowingtothesaltscreeningeffect, increasingsaltconcentrationenhancedtheNRETandtheenhancementofcalciumcationwasstrongerthanthatofsodiumcation. ThenormahzedNRETE, definedastheNRETinsaltsolutionrelativetothatinwaterforagivensample, showedthatin-tramolecularEndecreasedwiththeincreaseofchargedensityFinthesampleswithamaximumatFAMPs ≈ 0.45. Incontrast, theintermolecularEnincreasedwiththeincreaseofFAMPs,discount cosmetics mac, suggestingthattherewereinhomogeneousintermolecularaggregatesinpolyelectrolytesolutionsduetothecondensedcoun-terionsevenataconcentrationslowerthantheoverlapthresholdc. KeywordsPolyelectroly ~ e; Nonradiativeenergytransfer; Salteffect; Fluorescencelabel; Counterioncon-densation (Ed.: Y, Z) More articles related to topics： tory burch shoes Hydrophobic modification of acryl moncler outlet PMMA hyperbranched poly (ester - a tory burch shoes Greenhouse flower production in t |
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