Abstract: The functional monomers, including ethylene oxide and propylene oxide copolymer (m=the number of ethylene oxide, n=the number of propylene oxide, m and n values correspond to m=16 and n=18, m=16 and n=6, m=16 and n=2), phenyl-4-pentene (1-phenyl, 1, 1-diphenyland 1, 1, 1-triphenyl), and 1, 3-bis (dimethyl methylbutyl bromide) 2-acryloyloxy propane (the number of carbon chain is 8, 12 and 16, respectively.) were synthesized as a series of amphiphilic polymer samples. Through steady-state fluorescence experiments, dynamic light scattering, electron microscopy scanning, and transmission electron microscopy, we made a study on m/n values, and on how phenyl and carbon atoms influence the aggregate behavior of amphiphilic polymers and interfacial properties of water and oil. It was found that a spatial network structure formed after adsorption of amphiphilic polymer solutions by a solid surface. In the bulk solution phase, with an increase in the m/n value, phenyl group, carbon number, and the aggregate size, the morphology was denser. In terms of oil-water interfacial properties and emulsion for crude oil capacity, with an increase in m/n values, phenyl and carbon atoms, the lesser the oil-water interfacial tension and the smaller the contact angle, the smaller was the emulsion droplet size.

Key words: amphiphilic polymer, functional monomer, aggregation behavior, interfacial properties, aggregate morphology