Self-Assembly Behavior of Amphiphilic Copolymer Characterized by Dissipative Particle Dynamics Simulation |
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Authors: | Xiaohong Cui |
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Institution: | Geoscience Research Institute , Shengli Oilfield Branch , SINOPEC , Dongying , China |
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Abstract: | Amphiphilic polyacrylamide copolymer aqueous solutions have a special behavior of self-assembly, which is attributed to their composition and molecular structure. In this work, methoxy polyethylene glycol acrylate (PEGA) and/or dodecafluoroheptyl methacrylate (DF) were introduced into the partially hydrolyzed polyacrylamide (HDPAM) molecular chains to enhance their hydrophilicity and hydrophobicity, respectively. The self-assembly behaviors of these copolymers in water solution and salt solution were studied by dissipative particle dynamics (DPD). Results showed that the amphiphilic copolymer (HDPAM-PEGA-DF) had a stronger self-assembly behavior than the hydrophobic modified polyacrylamide copolymer (HDPAM-DF). |
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Keywords: | amphiphilic polyacrylamide dissipative particle dynamics self-assembly behavior |
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