Formation of ternary poly(acrylic acid)-surfactant-Cu2+ complexes in aqueous solution: quenching of pyrene fluorescence and pH-controlled "on-off" emitting properties.
作者： Z. Iatridi , G. Bokias
DOI: 10.1021/LA8019793
关键词:
摘要: The formation of binary and ternary complexes poly(acrylic acid) (PAA) with N,N,N,N-dodecyltrimethylammonium chloride (DTAC) and/or Cu2+ ions is investigated in dilute aqueous solution through turbidimetry, viscometry, pyrene fluorescence probing. It shown that the PAA−DTAC PAA−Cu2+ complexation as well PAA−DTAC−Cu2+ are controlled from pH solution. A pronounced quenching emission observed when formed, a result close proximity (complexed along polymer chain) probe (solubilized hydrophobic mixed polymer−surfactant aggregates), indicated corresponding Stern−Volmer plots. significant also poly(sodium styrene sulfonate) used instead PAA, indicating electrostatically bound still effective quenchers probes under similar conditions. Finally, it demonstrate...
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