Industry-University Cooperation Foundation Hanyang University

Samsung Electronics Co., Ltd.

Iucf-hyu

Industry-University Cooperation Foundation

Ho-bum Park

Chul-Ho Jung

Jae-young Choi

Young Moo Lee

Seon-mi Yoon

Sang-Hoon Han

Hyo-won Kim

Byung-kook Ahn

Hee-wook Yoon

Byung-min Yoo

Han-su Kim

Moon-seok Kwon

Sung Soo Han

Young H Cho

Hyo A Kang

Keun-Young Kim

Hyo Won Kim

Jae-Eun Lee

Young-Moo Lee

Jun Hyuk Moon

Seon-Mi Yoon

Jae-Young Choi

According to example embodiments, a separation membrane includes a graphene on at least one surface of a polymer support. The graphene may include a plurality of grains defined by grain boundaries.

Separation membrane including graphene

A forward osmosis water treatment device may use a separation membrane including a polymer layer introduced with a functional group having an affinity for an osmosis draw solute present in an osmosis draw solution.

Separation membrane and water treatment device including the same

A gas separation membrane including a porous layered support; and a gas separating active layer which is disposed on the porous layered support and includes a functionalized graphene.

Gas separation membrane and method of preparing the same

A gas separation membrane including a porous support; and a gas separating active layer which is disposed on the porous support and includes a functionalized graphene.

A negative electrode including: a metal layer including lithium; and a platy carbonaceous material layer including a carbonaceous material having a plate structure and disposed on the metal layer.

Negative electrode for lithium battery, lithium battery including the same, and methods of manufacture thereof

Disclosed herein are a polyimide-polybenzoxazole copolymer, a method for preparing thereof and a gas separation membrane comprising the same. More specifically, provided are a polyimide-polybenzoxazole copolymer simply prepared through thermal-rearrangement performed by thermally treating a polyimide-poly (hydroxyimide) copolymer as a precursor, a method for preparing the same, and a gas separation membrane comprising the same. The copolymer shows superior gas permeability and gas selectivity, thus being suitable for use in gas separation membranes in various forms such as films, fibers or hollow fibers. The gas separation membrane thus prepared can advantageously endure even harsh conditions such as long operation time acidic conditions and high humidity due to the rigid polymer backbone present in the copolymer.

Polyimide-co-polybenzoxazole copolymer, preparation method thereof, and gas separation membrane comprising the same

Disclosed herein are a method for preparing a benzoxazole-based polymer by thermal rearrangement, the benzoxazole-based polymer prepared by the method and a gas separation membrane comprising the polymer. More specifically, provided are a method for preparing a benzoxazole-based polymer by subjecting poly(hydroxyamide) as an intermediate to thermal treatment involving dehydration, the benzoxazole-based polymer obtained thereby and gas separation membrane comprising the polymer. The benzoxazole-based polymer of the present invention can be simply prepared by thermally rearrangement via thermal treatment at low temperatures, and thus exhibits superior mechanical and morphological properties and has well-connected microcavities. Due to showing excellent permeability and selectivity for various gases, the benzoxazole-based polymer is suited for application to gas separation membranes, in particular, gas separation membranes for small gases.

Preparation method of polybenzoxazoles by thermal rearrangement, polybenzoxazoles prepared thereby, and gas separation membrane comprising the same

Disclosed herein are polymer compounds and a method for preparing thereof. More specifically, provided are polymer compounds with well-connected, narrow size distribution free-volume element and a method for preparing the polymer compounds by thermal rearrangement for aromatic polyimides containing ortho-positioned functional groups in the solid state.

Polymer compounds and a preparation method thereof

Disclosed herein are polymer compounds, a method for preparing thereof. More specifically, provided are polymer compounds with well-connected, narrow size distribution free-volume element and a method for preparing the polymer compounds by thermal rearrangement for aromatic polyimides containing ortho-positioned functional groups in the solid state.

Growing community of inventors

Seoul, South Korea

Ho-bum Park