Abstract:
PURPOSE: A hybrid porous structure, a method for manufacturing the hybrid porous structure, a separating membrane including the hybrid porous structure, and a water treatment device including the same are provided to function as a separating membrane for variety of separating target materials. CONSTITUTION: A hybrid porous structure(10) includes a non-porous template(2), an ionic polymer coating layer(1), pores, and necks. The necks are in connection with pores arranged at the center part of a spherical body. A method for manufacturing the hybrid porous structure includes the following steps of: forming a laminate by laminating a plurality of spherical particles for forming macropores to be bordered in a three dimensional direction; forming a non-porous template by injecting a material for forming the non-porous template and curing; forming a non-porous template with densely laminated spherical macropores by dissolving and removing the spherical particles for forming macropores; and coating the inner surface of the macropores of the non-porous template with an ionic polymer solution to form an ionic polymer coating layer, and forming the hybrid porous structure.
Abstract:
Provided are a hybrid porous structure which comprises a matrix including a plurality of first pores interconnected toward 3D direction and porous materials including second pores filling some or entire of each first pore; the use of the same as a separation membrane; and a manufacturing method thereof.
Abstract:
복수의가상의구형체형상이 3차원방향으로서로접하도록쌓인가상의적층체에서상기가상의구형체간의간극을메우는형상의비다공성템플레이트(template); 및상기가상의적층체형상내부에존재하도록상기비다공성템플레이트내부에적층된이온성고분자코팅층을포함하는혼성다공성구조체가제공된다. 상기가상의구형체내부의중심부에기공이형성될수 있다. 상기혼성다공성구조체는두 개의상기가상의구형체형상이접하는영역에형성된기공인네크(neck)를복수개 포함할수 있다. 상기네크는상기구형체내부의중심부에존재하는기공과연결(interconnected)될수 있다.
Abstract:
PURPOSE: A composite porous structure including porous regions and non-porous region, a manufacturing method thereof and a separation film including the same are provided to enhance mechanical strength and stomatal density per unit area, to be utilized as a separation membrane material for a nanofiltration membrane and an ultrafiltration membrane by forming uniform sized nano pores, to selectively separate particular sized particles and to be effectively applied in bio filters for water process. CONSTITUTION: A composite porous structure (10) comprises porous regions (1) which form a nano porous structure and a non-porous region (2). The porous region is formed in a laminated form for a plurality of spherical bodies to be contacted in three dimensions. The non-porous region is formed in a structure which fills gaps between the pluralities of spherical bodies of the porous regions. The plurality of spherical bodies which forms the porous region has an interconnected structure in which adjacent spherical bodies are connected. The porous regions comprise an organic porous material, an inorganic porous material, an organic and inorganic hybrid porous material or a combination thereof.
Abstract:
Provided are semi-permeable film having polyhedral oligomer silsesquioxane derivatives dispersed in a polymer matrix, a method for manufacturing the same, a separation membrane including the semi-permeable film, and a water treatment apparatus including the separation membrane. According to an embodiment of the present invention, provided is a semi-permeable film having polyhedral oligomer silsesquioxane derivatives dispersed in a polymer matrix, and permeating water and not permeating salts. Provided in an embodiment of the present invention is a semi-permeable film having increased selectivity and permeability.
Abstract:
PURPOSE: An organic/inorganic composite compound is provided to provide a film with excellent staining resistance even through the film is hydrophilic. CONSTITUTION: An organic/inorganic composite compound comprises a core which is formed of a polyhedral oligomer silsesquioxane; and an arm which is connected to at least one Si of the polyhedral oligomer silsesquioxane. The arm comprises a vinyl-based first structure unit which comprises at least one ethylenoxide group in a side chain thereof; and an oleophobic vinyl-based second structure unit containing a silicon group in a side chain thereof. The atomic ratio of SI to -Si-O-Si couplings which form the polyhedral oligomer silsesquioxane is 1:1-3/2.
Abstract:
PURPOSE: A temperature-sensitive copolymer provides a solution which has high osmotic pressure and low backward diffusion of solute and of which the solute can be easily recovered and collected. CONSTITUTION: A temperature-sensitive copolymer comprises a first repeating unit in which a temperature-sensitive oligomer is grafted; and a second repeating unit including an ionic moiety and the counter ion of the ionic moiety. The temperature-sensitive oligomer is an oligomer including a repeating unit derived from an unsaturated monomer which has a moiety represented by chemical formula 1: *-C(=O)N(R2)(R3) or a moiety represented by chemical formula 2 or an oligomer including a repeating unit derived from a heterocyclic compound which contains C, N, and O in the ring and has C=N bonds.