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author:

Zheng, Y.-Y. (Zheng, Y.-Y..) [1] (Scholars:郑玉婴) | Zhao, J.-X. (Zhao, J.-X..) [2] (Scholars:赵剑曦) | Lin, C.-Y. (Lin, C.-Y..) [3] (Scholars:林翠英)

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Abstract:

Pluronic F68 is a poly (ethylene oxide) - poly (propylene oxide) - poly (ethylene oxide) triblock copolymer (indicated as (EO) x - (PO) y - (EO) x with x = 76 and y = 29). Experimental results showed that F68 formed micelle at 50 °C. The micellar core consisted of 80% PO and 20% EO components. The hydrophilic PEO blocks extended into the surrounding aqueous solvent, forming a 'corona' around the core. The intrinsic viscosity of F68 micelle at 50 °C was determined to be 11.6 cm3 · g-1 and the weight of hydrating water per g of solute was 3.6 g. Solubilization of naphthalene, anthracene and pyrene in F68 aqueous micellar solutions at 50 °C was investigated by UV - spectra measurements. The results showed that the partition coefficients (Kv) of naphthalene, anthracene and pyrene between the micelle and water were 2.54 × 102, 7.94 × 102 and 8.74 × 102 respectively.

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Fine Chemicals

ISSN: 1003-5214

CN: 21-1203/TQ

Year: 2001

Issue: 7

Volume: 18

Page: 373-375,390

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 0

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