Industry-Academic Cooperation Foundation, Dankook University

Hyundai Motor Company

Kia Corporation

Kia Motors Corporation

Jin Pyo Hwang

Chang Hyun Lee

Dong Eun Cha

Sang Heon Lee

Jin Seok Seo

Julliana Cho

Byoung Oh Choi

Chang Hoon Oh

The present inventive concept relates to a chemically modified anion exchange membrane and a method of preparing the same and, more particularly, an anion exchange membrane in which sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane are substituted with anion conductive groups such as an ammonium group, a phosphonium group, an imidazolium group, a pyridinium group and a sulfonium group, and a method of preparing an anion exchange membrane by chemically modifying sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane.

Chemically modified anion exchange membrane

The present invention relates to a chemically modified anion exchange membrane and a method of preparing the same and, more particularly, an anion exchange membrane in which sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane are substituted with anion conductive groups such as ammonium group, phosphonium group, imidazolium group, pyridinium group and sulfonium group, and a method of preparing an anion exchange membrane by chemically modifying sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane.

Chemically modified anion exchange membrane and method of preparing the same

An air mobility may include a seat in which an airbag or a parachute is stored; and an escape portion configured to support the seat mounted to the escape portion, coupled to the air mobility to form part of the air mobility, and configured to enable a passenger to perform an emergency bailout with the seat to an outside of the air mobility when the escape portion is separated from the air mobility.

Air mobility

The present inventive concept relates to a chemically modified anion exchange membrane and a method of preparing the same and, more particularly, an anion exchange membrane in which sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane are substituted with anion conductive groups such as ammonium group, phosphonium group, imidazolium group, pyridinium group and sulfonium group, and a method of preparing an anion exchange membrane by chemically modifying sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane.

Method of preparing chemically modified anion exchange membrane

A pattern skin lighting device of a vehicle may include a plurality of lightning cells disposed on a plane while forming a predetermined pattern. Each lightning cell includes a light emitting element, a cell pocket configured to surround the light emitting element, a cell cover configured to be pivotable with respect to the cell pocket while surrounding the light emitting element within the cell pocket, and an actuator engaged to an end of the cell cover and configured to selectively pivot the cell cover with respect to the cell pocket.

Pattern skin lighting device of vehicle

A retractable table may include a table body wound around the retraction mechanism in the housing when accommodated and drawn out and unfolded to the outside of the housing through the accommodation hole when drawn out, and a support mechanism provided at a side end portion of the table body, including a plurality of pieces, each of which is folded to overlap the table body or unfolded from the table body, and including magnetic bodies provided on the pieces to provide rigidity such that, when the table body is deployed, the pieces are connected to each other through the magnetic bodies to maintain the deployed state of the table body.

Retractable table

The present inventive concept relates to a method of preparing an ion-exchange membrane using a chemical modification and an ion-exchange membrane prepared thereby. More specifically, the present inventive concept relates to a method of preparing an ion-exchange membrane, which is characterized by modifying sulfonic acid groups of a perfluorinated sulfonic acid electrolyte membrane with carboxyl groups and includes chlorinating sulfonic acid groups of a perfluorinated sulfonic acid electrolyte membrane; nitrilating the chlorinated electrolyte membrane; and hydrolyzing the nitrilated electrolyte membrane, and an ion-exchange membrane chemically modified thereby.

Growing community of inventors

Cheonan-si, South Korea

Jin Pyo Hwang