Dear Tu Wei,
you did not indicate the length of alkyl chain. In any case the molecule look like as surfactant with mixed functions^ nonionic and anionic. The presence of micelles or microemulsion particles you can prove simply using dye that has different colour in water and micelles due to solubilization effect.
Dear Tu,
was not familiar with 'extended surfactant'. As it means
'Extended surfactants are surfactants with intermediate polarity groups, such as polypropylene oxide (PO) and polyethylene oxide (EO), inserted between the hydrophilic head and the hydrocarbon tail. With this unique molecular structure, extended surfactants provide an enhanced interaction with both oil and water phases.'
http://udini.proquest.com/view/extended-surfactants-goid:304487133/
Second part of statement seems to be not generally valid, i.e. increasing EO chain length certainly will not enhance interaction with oil phase.
According to this definition of course these are 'extended surfactants'.
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