Preparation of Prussian Blue Containing Polymeric Nanocapsule via Interfacial Confined Coordination in Crosslinked Inverse Miniemulsion

This work presents a simple and facile strategy for the creation of Prussian blue containing polymeric nanocapsules. An crosslinked inverse miniemulsion with a formula of water/ K4Fe(CN)6/1,2-bis-(-2-iodoethyl) ethane(BIEE)/ toluene/ PDMAEMA-b-PS stabilizer mixture was prepared as soft template firstly. A crosslinking nanocapsule structure with K4Fe(CN)6 in water core could be achieved by a crosslinking reaction between PDMAEMA-b-PS stabilizers and BIEE. Upon the following addition of FeCl3 ether solution into the oil phase of this inverse miniemulsion, a coordination reaction between two iron salts occurred immediately to form a Prussian blue complex. Due to the solubility limitation of FeCl3 in the oil phase of the miniemulsion, forcing the coordination reaction of K4Fe(CN)6 and FeCl3 mainly occurred at the oil-water interface of the nanocapsules, resulting in a soft polymer/Prussian blue(PB) hybrid nanocapsule.

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Porous materials from cellulose nanocrystal and mxene surfactants at the oil/water interface

10.1021/scimeetings.0c07366 ◽

2020 ◽

Author(s):

Bingqing qian ◽

Haiqiao Wang ◽

Dong Wang ◽

Hao-Bin Zhang ◽

Jessica Wu ◽

...

Keyword(s):

Porous Materials ◽

Cellulose Nanocrystal ◽

Water Interface ◽

Oil Water

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Polarizability and nonpolarizability of oil-water interfaces with relevance to a.c. impendance measurements

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19910112 ◽

1991 ◽

Vol 56 (1) ◽

pp. 112-129 ◽

Cited By ~ 14

Author(s):

Takashi Kakiuchi ◽

Mitsugi Senda

Keyword(s):

Charge Transfer ◽

Numerical Calculation ◽

Supporting Electrolyte ◽

Water Interface ◽

Migration Effect ◽

Ac Current ◽

Stationary Interface ◽

Oil Water ◽

Anion Transfer

We have estimated the degree of polarizability of a polarized oil-water interface used as a working interface and that of the nonpolarizability of a nonpolarized interface used as a reference oil-water interface from the numerical calculation of dc and ac current vs potential behavior at both interfaces. Theoretical equations of dc and ac currents for simultaneous cation and anion transfer of supporting electrolytes have been derived for the planar stationary interface for reversible and quasi-reversible cases. In the derivation, the migration effect and the coupling of the cation and anion transfer have been incorporated. The transfer of ions constituting a supporting electrolyte contributes to the total admittance of the interface even in the region where the interface may be considered as polarized in dc sense, as pointed out first by Samec et al. (J. Electroanal. Chem. 126, 121 (1981)). Moreover, the reference oil-water interface is not ideally reversible, so that the contribution from this interface to the measured admittance cannot be negligible, unless the area of the reference oil-water interface is much larger than that of the working oil-water interface. The effect of non-ideality of the reference oil-water interface on the determination of double layer capacitances and kinetic parameters of charge transfer at the working oil-water interface has been estimated.

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