Amphiphilic Perforated Honeycomb Films for Gravimetric Liquid Separation

Chen, Bihai; Wada, Takehiko; Yabu, Hiroshi

doi:10.1002/admi.202101954

Cited by 12 publications

(8 citation statements)

References 46 publications

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“…After complete evaporation of the solvent and template water droplets, HCP films are formed ( Yabu et al., 2006 ; Ishii et al., 2009 ). HCP films have been used in various applications, such as filtration ( Chen et al., 2022 ), controllable oil adhesion ( Chen et al., 2020 ), liquid repellent surfaces ( Kamei and Yabu, 2015 ; Yabu and Shimomura, 2005 ), cell culture substrates ( Kawano et al., 2014 ; Oku et al., 2021 )-34], and capacitors ( Shimamura et al., 2019 ). However, the potential of hexagonal arranged porous architectures for LIB electrolytes has not been explored.…”

Section: Introductionmentioning

confidence: 99%

Increasing the ionic conductivity and lithium-ion transport of photo-cross-linked polymer with hexagonal arranged porous film hybrids

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Section: Introductionmentioning

confidence: 99%

Increasing the ionic conductivity and lithium-ion transport of photo-cross-linked polymer with hexagonal arranged porous film hybrids

et al. 2022

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“…[ 59 ] However, intrusion of polymer melt in the pores, i.e., partial Wenzel mode, cannot be excluded. The theoretical condition of a transition between the Cassie‐Baxter to Wenzel configuration is given by the following equation: [ 60,61 ]

\begin{eqnarray}{\rm{cos}}({{{\alpha}}_{\rm{p}}}) &gt; (1 - {\upsilon _{\rm{p}}})/({\rm{r}} - {\upsilon _{\rm{p}}})\end{eqnarray}

where α p is the CA measured on the smooth films, r is the ratio of the real area to the projected area, and υ p is the polymer fraction in contact with liquid drop. Although Equation is satisfied with both PS and P n BA‐ b ‐PS experimental values, indicating that the liquid can penetrate inside the pores, a better representation of the interfacial behavior was proposed by Bormashenko et al [ 62 ] Indeed, in the specific case of HC polymer films in which the liquid fully penetrate the porosity, they suggested to consider the liquid–liquid interface at the pore openings in the Cassie expression.…”

Section: Resultsmentioning

confidence: 99%

“…[59] However, intrusion of polymer melt in the pores, i.e., partial Wenzel mode, cannot be excluded. The theoretical condition of a transition between the Cassie-Baxter to Wenzel configuration is given by the following equation: [60,61] cos(𝛼 p ) > (1…”

Section: Static Contact Angle Measurementsmentioning

confidence: 99%

Wetting and Adhesion of a Polymer Melt on Porous Self‐Assembled Polymer Substrates by Breath Figure Templating

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et al. 2022

Macro Chemistry & Physics

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This study addresses the wetting and adhesion of a low molecular mass poly(n-butyl acrylate) homopolymer melt, used as a weak acrylic adhesive, on two types of textured polymer films prepared by the breath figure templating method. The first film is a polystyrene homopolymer honeycomb-like structure with well-defined porous structure and long-range ordering. The second is a disordered poly(n-butyl acrylate)-block-polystyrene diblock copolymer film featuring a broad distribution of pore diameters. Static contact angle measurements show that porous films repel better the polymer melt than the corresponding nontextured films. Contact angles and spreading of polymer melt droplets on these textured surfaces reveals a Cassie-Baxter state on the ordered porous film and a partial Wenzel state on the disordered porous films. In addition, probe tack results show that the textured surfaces tend to induce cavitation. The correlation between the wetting and adhesion highlights the major role of melt insertion into the pores, which is primarily controlled by the pores' dimensions.

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“…Oil/water separation membrane [30] is a significant field of application, and oily contamination usually consists of two major styles: free-floating oil droplets and stable emulsified dispersions.…”

Section: Oil/water Separationmentioning

confidence: 99%

Binary Cooperative Complementary Membranes: A Perspective

Wang

2022

Adv Materials Inter

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with more powerful theories, instruments, and methods to create remarkable membrane materials, promoting the further development of membrane separation technology. In fact, a wide range of membrane materials have been designed and fabricated based on the principle of BCCP, although they are not officially categorized as BCCNMs. The membranes, fabricated with the BCCNMs, are deemed as the binary cooperative complementary membranes (BCCMs). Learning from nature has been an important means of innovative development of membrane technology. [6] Simulating different structures, materials and functions found in biological systems to fabricated membranes will significantly increase the possibility of membranes that applied in energy and environmental application. Among various nature membranes, cell membranes, constructed with amphipathic lipids and membrane proteins, are the most representative. Generally, a self-assembly process driven by the amphiphilic nature of phospholipid molecules explains the formation of cell membranes. The lipid bilayer is always flowing, in which contains amphiphilic proteins and assemblies of lipids. Zwitterionic phosphatidylcholine, mainly located on the outer surface, demonstrates excellent non-thrombogenic and nonfouling characteristics. Membrane proteins exhibit outstanding permselectivity that controlling the permeation of water, ions, gas molecules, and other small molecules entry and exist into cells.According to bioinspired membranes, various zwitterionic compounds, consisting of equivalent positively and negatively charged groups, have been used to the zwitter-ionization modification of membrane surface. The strong hydration of the zwitterionic compositions would form strong hydration layer through electrostatic interactions, which improve the hydrophilicity and anti-fouling abilities of membranes, demonstrating the BCCP effect. The membranes with hydrophobic and hydrophilic properties have been widely used for oil-water separation, which is a concrete application of BCCMs. Control the wettability of rough surfaces such as separation membranes can be achieved by imitating the structures of living organisms. Surface structures, imitating various organisms, exhibit high hydrophobicity such as lotus leaves, [7] and water strider legs, [8] and high water wetting ability such as fish scales. [9] This research reveals that surface nano-and micro-structures impart these biomimetic surfaces with superhydrophobic/superhydrophilic features.The above mentioned BCCMs is based on two opposite and complementary properties in a material. The complementary properties demonstrated by the two different materials have been extensively studied, and hybrid membranes are the Binary cooperative complementary principle (BCCP) refers to two opposite but cooperative and complementary species or states. Currently, a variety of high-performance membranes fabricated using membrane materials with BCCP, are known as binary cooperative complementary membranes (BCCMs). Three types of BCCMs are discussed including h...

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Amphiphilic Perforated Honeycomb Films for Gravimetric Liquid Separation

Cited by 12 publications

References 46 publications

Increasing the ionic conductivity and lithium-ion transport of photo-cross-linked polymer with hexagonal arranged porous film hybrids

Increasing the ionic conductivity and lithium-ion transport of photo-cross-linked polymer with hexagonal arranged porous film hybrids

Wetting and Adhesion of a Polymer Melt on Porous Self‐Assembled Polymer Substrates by Breath Figure Templating

Binary Cooperative Complementary Membranes: A Perspective

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