Decomposition of Free Chlorine with Tertiary Ammonium

Katano, Hajime; Uematsu, Kohei; Tatsumi, Hirosuke; Tsukatani, Toshihide

doi:10.2116/analsci.26.349

Cited by 6 publications

(18 citation statements)

References 11 publications

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“…7 However, in contrast to the BA14BEHS-blended film, leaching was observed visually at the surfaces of the 10% BA14BEHP-blended PVC film. Although it has been reported that 1-butyl-3-methylimidazolium hexafluorophosphate (BMImPF 6 ) can be used as plasticizer for PVC, 6 leaching was observed visually at the surface of 10% BMImPF 6 -blended PVC film.…”

Section: The Ba14mentioning

confidence: 92%

“…The BA14BEHP is leachable from the PVC film as mentioned above, and the BEHP ¹ anion can be hydrated. 7 The PVC film blended with both 5% BA14BEHP and 5% BA14BEHS gave a lower surface resistivity of 1 © 10 12 ohms. The results indicate that BA14BEHS cannot act like conventional cationic surfactants in PVC.…”

Section: ¹2mentioning

confidence: 97%

“…BA14Cl has been considered to be one of the safest antimicrobial agents and has a long history of efficacious use. 8,9 In the previous study, 7 it has been shown that textile products treated with BA14BEHS exhibited high antimicrobial activities. The present paper also describes the results of an antimicrobial test with BA14BEHS-blended PVC film.…”

mentioning

confidence: 92%

“…In a previous paper, 7 it has been shown that benzyldimethyltetradecylammonium (BA14 + , Figure 1a) salt with bis(2-ethylhexyl) sulfonatosuccinate (BEHS ¹ , Figure 1b) anion maintains its liquid state even at room temperature. Because BA14BEHS is a halogen-free low-volatile liquid material, it can be expected to be used advantageously in place of traditional polymer additives.…”

mentioning

confidence: 98%

“…The BA14BEHS was confirmed by IR and UV spectra. 7 Bis(2-ethylhexyl) phthalate (Wako) was used as a reference material. Poly(vinyl chloride) powder (n = 1100) and tetrahydrofuran (with stabilizer) were obtained from Wako, and were used to prepare the sample PVC films as follows: The PVC powder and the BA14BEHS were dissolved in tetrahydrofuran.…”

mentioning

confidence: 99%

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Viscoelasticity, Leachability, and Antimicrobial Activity of Poly(vinyl chloride) Blended with Benzyldimethyltetradecylammonium Bis(2-ethylhexyl) Sulfonatosuccinate

Katano¹,

Tsukatani²

2010

Bulletin of the Chemical Society of Japan

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Benzyldimethyltetradecylammonium (BA14 + ) salt with bis(2-ethylhexyl) sulfonatosuccinate (BEHS ¹ ) anion maintains its liquid state even at room temperature, so it can be regarded as a halogen-free low-volatile liquid material. In this study, the potential use of BA14BEHS as additive for poly(vinyl chloride) (PVC) has been investigated. The temperature dependence of the storage and loss moduli of PVC films blended with BA14BEHS showed a similar trend of that with a traditional plasticizer bis(2-ethylhexyl) phthalate. The glass transition temperature of the PVC films determined as the peak top temperature in loss modulus was lowered with increasing BA14BEHS content. The 10% BA14BEHS-blended PVC film was placed in contact with water and heptane, but BA14BEHS could not be detected from the aqueous and organic media. The results indicate that BA14BEHS can be applied as a plasticizer for PVC. Since BA14BEHS can be used to give textiles antimicrobial properties, the activity of the BA14BEHS-blended PVC film was assayed against Escherichia coli JM109. In spite of the low-leachability of BA14BEHS, the PVC film showed a significant antimicrobial activity.

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Section: The Ba14mentioning

confidence: 92%

Section: ¹2mentioning

confidence: 97%

mentioning

confidence: 92%

mentioning

confidence: 98%

mentioning

confidence: 99%

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Viscoelasticity, Leachability, and Antimicrobial Activity of Poly(vinyl chloride) Blended with Benzyldimethyltetradecylammonium Bis(2-ethylhexyl) Sulfonatosuccinate

Katano¹,

Tsukatani²

2010

Bulletin of the Chemical Society of Japan

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Direct Label-free Electrochemical Detection of Proteins Using the Polarized Oil/Water Interface

et al. 2010

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Voltammetric behaviors of various globular proteins, including cytochrome c, ribonuclease A, lysozyme, albumin, myoglobin, and alpha-lactalbumin, were studied at the polarized 1,2-dichloroethane/water (DCE/W) interface in the presence of four different anionic surfactants, that is, dinonylnaphthalenesulfonate (DNNS), bis(2-ethylhexyl)sulfosuccinate (Aerosol-OT; AOT), bis(2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptyl)sulfosuccinate (BDFHS), and bis(2-ethylhexyl)phosphate (BEHP). When the W phase was acidic (pH = approximately 3.4), the surfactants (except for BEHP) added to DCE facilitated the adsorption of the above proteins to the DCE/W interface and gave a well-developed voltammetric wave due to the adsorption/desorption of the proteins. This voltammetric wave, which we here call "protein wave", is promising for direct label-free electrochemical detection of proteins. The current for the adsorption of a protein to the interface showed a linear dependence on the protein concentration in the presence of excess surfactant. The foot potential at which the protein wave appeared in cyclic voltammetry showed different values depending on the natures of the protein and surfactant. Multivariate analysis for the foot potentials determined for different proteins with different surfactants revealed that the protein selectivity should depend on the charged, polar, and nonpolar surface areas of a protein molecule. On the basis of these voltammetric studies, it was shown in principle that online electrochemical separation/determination of proteins could be performed using a two-step oil/water-type flow-cell system.

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Physicochemical Properties and Antimicrobial Performance of Benzyldimethylalkylammonium Bis(2-ethylhexyl) Phosphate

2015

Sensors and Materials

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Benzyldimethylalkylammonium salts with bis(2-ethylhexyl) phosphate maintain their liquid state at room temperature. These are immiscible but can be dispersed stably in water. The benzyldimethyltetradecylammonium salt emulsion exhibited the highest antimicrobial activity among them and some advantages as an additive for aqueous media compared with conventional cationic-surfactant-type antimicrobial agents.

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Decomposition of Free Chlorine with Tertiary Ammonium

Cited by 6 publications

References 11 publications

Viscoelasticity, Leachability, and Antimicrobial Activity of Poly(vinyl chloride) Blended with Benzyldimethyltetradecylammonium Bis(2-ethylhexyl) Sulfonatosuccinate

Viscoelasticity, Leachability, and Antimicrobial Activity of Poly(vinyl chloride) Blended with Benzyldimethyltetradecylammonium Bis(2-ethylhexyl) Sulfonatosuccinate

Direct Label-free Electrochemical Detection of Proteins Using the Polarized Oil/Water Interface

Physicochemical Properties and Antimicrobial Performance of Benzyldimethylalkylammonium Bis(2-ethylhexyl) Phosphate

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