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Citation: MA Li, LI Xiao-Feng, GAN Meng-Yu, LIU Xing-Min, LUO Lai-Zheng, SU Wen-Yi, LIU Yan. Magnetic Field Effects on the Phase Behavior of a Microemulsion System during Aniline Polymerization[J]. Acta Physico-Chimica Sinica, ;2010, 26(03): 541-546. doi: 10.3866/PKU.WHXB20100244 shu

Magnetic Field Effects on the Phase Behavior of a Microemulsion System during Aniline Polymerization

1.
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China

Received Date: 5 November 2009
Available Online: 7 January 2010

Magnetic field (MF) and the mass ratio of a co-surfactant and a surfactant (Km=mn-butanol/mSDBS) on effects the phase behavior, conductivity, and micro-emulsification of the microemulsion system during aniline polymerization were investigated by a pseudo-ternary phase diagram of sodium dodecyl benzene sulfonate (SDBS)/n-butanol/aniline/H2O. Our results show that with an increase in alcohol content, the area of the microemulsion region increased initially and then decreased. This area reached a maximumat a Kmof 1.0 and increased under the influence of a MF. Characterization of the pseudo-ternary phase diagram was undertaken by an analysis of the solution conductivity as the water content varied in the presence of a MF. Transmission electron microscopy (TEM) indicated the particle-size of the polyaniline (PAn), which polymerized in the presence of the MF, was much smaller than that of the PAn polymerized in the absence of the MF.
- Microemulsion,
- Aniline,
- Magnetic field,
- Phase behavior,
- Pseudo-ternary phase diagram
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