Investigation of influence of constant magnetic fields on the structure and properties of chloroprene latex based films

Petrova, I. I.; Dishovsky, Nikolay; Dimitrov, R.

doi:10.1016/j.polymertesting.2005.07.004

Cited by 3 publications

(1 citation statement)

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“…A strong correlation between the structure of this kind of polymeric materials and their ability for magnetization may be expected. As a result of MF treatment, changes in supermolecular structure formation and degree of crystallization were observed, as well as improvement of mechanical properties [6] .…”

Section: Introductionmentioning

confidence: 99%

Effect of magnetic field on property and structure of polyaniline doped with multiple sulfonic acids

Huang

Chen

et al. 2008

J. Cent. South Univ. Technol.

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Polyaniline(PAn) doped with multiple sulfonic acid system of dodecylbenzenesulfonic acid(DBSA) and sulfosalicylic acid(SSA) was synthesized by emulsion polymerization using ammonium persulfate(APS) as an oxidizing agent in the presence and the absence of a constant magnetic field(MF)of 0.8 T. The structure and properties of the PAn were characterized by X-ray diffractometer(XRD), thermogravimetric apparatus(TGA), FT-IR spectroscope(FT-IR) and four probe digital multimeter. The results indicate that, when the molar ratio of DBSA to SSA is 1/3, that of dopant to An is 3/2, that of APS to An is 4/5 in the synthesizing media, and the doping time is 3 h, the conductivity of the PAn synthesized in the presence of the MF of 0.8 T reaches 5.88 S/cm, which is higher than that of the PAn synthesized in the absence of the MF. The thermal stability, the crystallinity and the doping degree of the PAn synthesized in the presence of the MF are also improved. MF not only enhances the conductivity, but also reduces the doping time, the dosage of the dopant and the oxidizing agent when the conductivity reaches the maximum.

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Section: Introductionmentioning

confidence: 99%