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Citation: YANG Yi-Qun, YI Cheng-Lin, WANG Yi-Hua, JIANG Jin-Qiang, LIU Xiao-Ya. Self-Assembly and Emulsification of the Alternating Copolymer P(St-alt-Ma-Dopa)[J]. Acta Physico-Chimica Sinica, ;2009, 25(11): 2225-2231. doi: 10.3866/PKU.WHXB20091011 shu

Self-Assembly and Emulsification of the Alternating Copolymer P(St-alt-Ma-Dopa)

1.
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P. R. China

Received Date: 29 March 2009
Available Online: 26 August 2009

Using dimethylsulfoxide (DMSO) as solvent, an amphiphilic alternating copolymer P(St-alt-Ma-Dopa) was prepared by the ammonolysis of P(St-alt-Man) with dopamine. The influences of additives (HCl, NaOH, or NaCl) on the characteristics of P(St-alt-Ma-Dopa) colloidparticles after the self-assemblyof the copolymer in the selective solvent N,N-dimethylformamide (DMF)/H2O were studied by UV spectrophotometer, transmission electron microscopy (TEM), zeta potential measurements, and fluorescence probe. Results show that P(St-alt-Ma-Dopa) can self-assemble into spherical particles and its critical water content (CWC) is larger than that of P(St-alt-Man). The size, zeta potential, and hydrophilic-hydrophobic property of these colloid particles showed a series of regular changes after the addition of HCl, NaOH, or NaCl. The emulsification of P(St-alt-Ma-Dopa) colloid particles was improved because of the presence of dopamine.
- Self-assembly,
- Alternating copolymer,
- Colloid particle,
- Emulsification,
- Dopamine
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