Studies on Solubilization Site of the Triplet Energy Acceptor Biacetyl in Normal Micelles by Using Quenched RTP Method

Abstract

Abstract: The solubilization site of the triplet energy acceptor biacetyl in normal micelles isstudied by quenched RTP. Ethyl iodide, butyl bromide were used as hydrophobic quenchers.Potassium bromide, copper chloride were the hydrophilic quenchers. The results indicatethat biacetyl is located in the head group-water interface and likely to be lined up along thealkyl chains of the surfactant's aggregates but its carbonyl group is close to the head group ofsurfactant. So, if donor is located in the head group-water interface where biacetyl issolubilitized, enhanced energy transfer is observed.

Key words: Quenched room temperature phosphorescence, Biacetyl, Micelles

CLC Number:

O657.32

TrendMD:

XIE Jian-Wei, XU Jin-Gou, CHEN Guo-Zhen. Studies on Solubilization Site of the Triplet Energy Acceptor Biacetyl in Normal Micelles by Using Quenched RTP Method[J]. Chem. J. Chinese Universities, 1997, 18(10): 1602.

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Studies on Solubilization Site of the Triplet Energy Acceptor Biacetyl in Normal Micelles by Using Quenched RTP Method

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