Application of hydrophobically modified water‐soluble polyacrylamide conjugated with poly(oxyethylene)‐co‐poly(oxypropylene) surfactant as emulsifier |
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| Authors: | Ayman A Atta H I Al‐Shafy Zakaa M Mohamed |
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| Institution: | 1. Egyptian Petroleum Research Institute, Petroleum Application Department, Nasr City 11727, Cairo, Egypt;2. Quality Control Department, Egyptian General Petroleum Corporation (EGPC), New Maadi 11742, Cairo, Egypt |
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| Abstract: | Hydrophobically modified polyacrylamide (PAAm) was prepared by grafting PAAm with block copolymer of poly(ethylene oxide) and poly(propylene oxide), PEO‐PPO‐PEO, by melt method in the presence of benzoyl peroxide as initiator. The chemical structure of the graft copolymer was determined by FTIR and 1HNMR analyses. The surface tension, critical micelle concentration, and surface activities were determined at different temperatures. Surface parameters such as surface excess concentration (Γmax), the area per molecule at interface (Amin), and the effectiveness of surface tension reduction (ΠCMC) were determined at different temperatures from the adsorption isotherms of the prepared surfactants. The prepared surfactant was tested as emulsifier for water with xylene, cyclohexane, or petroleum crude oil synthetic emulsions. Copyright © 2010 John Wiley & Sons, Ltd. |
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| Keywords: | hydrophobically modified polyacrylamide block copolymer of poly(ethylene oxide) and poly(propylene oxide) emulsifier micellization phase inversion temperature |
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