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.
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:
PURPOSE: A separation film, a manufacturing method, and a water treatment apparatus including the same are provided to make a manufacturing process simple, a salt removal rate simple, durability excellent, to minimize an inside concentration polarization, thanks to the high strength property, high water permeated flow rate, and excellent hydration property. CONSTITUTION: A separation film includes a support layer including polymer including a structure unit represented by chemical formula1, and a polymer matrix layer. In the chemical formula1, R1 - R6 are independently, hydrogen, a substituted or non-substituted C1 - C30 alkyl group, a substituted or non-substituted C3 - C30 cycloalkyl group, a substituted or non-substituted C2 - C30 hetero-cycloalkyl, a substituted or non-substituted C6 - C30 aryl group, a substituted or non-substituted C2 - C30 heteroaryl group, a substituted or non-substituted C7 - C30 alkylaryl group, a substituted or non-substituted C7 - C30 arylalkyl group or -COR7. R7 is a substituted or non-substituted C1 - C30 alkyl group, a substituted or non-substituted C3 - C30 cycloalkyl group, a substituted or non-substituted C2 - C30 hetero-cycloalkyl, a substituted or non-substituted C6 - C30 aryl group, a substituted or non-substituted C2 - C30 heteroaryl group, a substituted or non-substituted C7 - C30 alkylaryl group, a substituted or non-substituted C7 - C30 arylalkyl group. However, at least one of R1 - R3 and at least one of R4 - R6 is identical or different -COR7.
Abstract:
PURPOSE: A separating membrane, a manufacturing method of the same, and a composite membrane including the same are provided to form a water treatment module with high energy efficiency. CONSTITUTION: A separating membrane includes polyacyrlonitrile-based copolymer(301). The polyacyrlonitrile-based copolymer includes hydrophobic side chains or hydrophobic repeating units(303). The separating membrane includes a skin layer(101) and a porous layer(102). The thickness ratio of the skin layer to the porous layer is 0.01 or less. The thickness of the skin layer is 1um or less.
Abstract:
기재, 그리고상기기재의적어도일면에위치하고이미드계공중합체를포함하는내열다공층을포함하고, 상기이미드계공중합체는하기화학식 1로표시되는제1 반복단위및 하기화학식 2로표시되는제2 반복단위를포함하는리튬이차전지용세퍼레이터및 이를포함하는리튬이차전지가제공된다. [화학식 1][화학식 2](상기화학식 1 및 2에서, L, L, Q, Q, R, R′, a, a′, m 및 n은각각명세서에정의된바와같다.)