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US 2026/0216670 A1Published application
Semipermeable membrane and semipermeable membrane module
AssigneeToyobo Co., Ltd.
InventorsTaisei Kanai, Shinya Koyama
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Abstract
A semipermeable membrane comprising a sulfonated polyarylene ether copolymer, wherein the sulfonated polyarylene ether copolymer includes a hydrophobic segment repeating unit represented by a formula (1) and a hydrophilic segment repeating unit represented by a formula (2) as copolymerization components, and a solvation energy density of the entirety of the semipermeable membrane is from 170 to 225 kJ·mol−1·nm−3.
Claims8
A semipermeable membrane comprising:
- a sulfonated polyarylene ether copolymer, wherein
- the sulfonated polyarylene ether copolymer includes a hydrophobic segment repeating unit represented by a formula (1) below and a hydrophilic segment repeating unit represented by a formula (2) below as copolymerization components;
- where each of R1 and R2 represents “—SO3M” and M represents a metallic element, and
- a solvation energy density of the entirety of the semipermeable membrane is from 170 to 225 kJ·mol−1·nm−3.
1 more element
Dependencies are inferred from the claim text.