公开(公告)号：US20170120200A1

公开(公告)日：2017-05-04

申请号：US15150056

申请日：2016-05-09

Applicant: Korea Institute of Science and Technology

Inventor： Jong Suk LEE ,  Seung Sang HWANG ,  Sunghwan PARK ,  Albert Sung Soo LEE

IPC: B01D71/02 ,  B01D67/00 ,  B01D53/22

CPC classification number: B01D67/0067 ,  B01D53/228 ,  B01D71/021 ,  B01D2256/24 ,  B01D2257/102 ,  B01D2257/104 ,  B01D2257/2064 ,  B01D2257/504 ,  B01D2257/7022 ,  B01D2323/12 ,  B01D2323/24 ,  Y02C10/10

Abstract: Provided is a composition for use in fabricating a carbon molecular sieve membrane, including a fluorine-containing polymer matrix and polysilsesquioxane. The composition shows high selectivity to the gas to be separated and high separation quality by controlling the mixing ratio of the fluorine-containing polymer matrix with polysilsesquioxane as well as the type of fluorine-containing polymer matrix and polysilsesquioxane. Ancillary selective pore formation is enhanced by a so-called “autogenous fluorinated gas induced siloxane etching” (A-FISE) mechanism of fluorine-containing polymer/polysilsesquioxane blend precursors during carbonization. Therefore, it is possible to effectively separate gases having a small difference in particle size, which, otherwise, are difficult to be separated with the conventional polymer membranes.

公开(公告)号：US20160107127A1

公开(公告)日：2016-04-21

申请号：US14697363

申请日：2015-04-27

Applicant: Korea Institute of Science and Technology

Inventor： Jong Suk LEE ,  Seung Sang HWANG ,  Albert Sung Soo LEE ,  Sunghwan PARK ,  Sang Hee PARK ,  Sanghyup LEE

IPC: B01D69/12 ,  B01D71/70 ,  C08G77/18 ,  B01D67/00

CPC classification number: B01D69/125 ,  B01D53/228 ,  B01D67/009 ,  B01D71/70 ,  B01D2323/08 ,  B01D2323/30 ,  B01D2323/345 ,  B01D2325/20 ,  C08G77/18

Abstract: The present disclosure provides a gas separation membrane using a ladder-structured polysilsesquioxane in which organic functional groups are attached to a long siloxane chain and a method for fabricating the same. In accordance with the present disclosure, a free-standing ladder-structured polysilsesquioxane-based membrane with various functional groups can be fabricated for gas separations. The performance of the gas separation membrane can be controlled through a variety of combinations of the organic functional groups linked to the siloxane chain. In addition, by controlling the molecular structure of the gas separation membrane through mixing of the ladder-structured polysilsesquioxane with an amine compound or conventional glassy or rubbery polymers or through thermal/UV-curing, the permeability and selectivity of the gas separation membrane can be controlled selectively.

Abstract translation: 本公开内容提供了使用其中有机官能团连接到长硅氧烷链上的梯形结构的聚倍半硅氧烷的气体分离膜及其制造方法。 根据本公开，可以制造具有各种官能团的独立的梯形结构的聚倍半硅氧烷基膜，用于气体分离。 可以通过与硅氧烷链连接的有机官能团的各种组合来控制气体分离膜的性能。 此外，通过将梯形结构的聚倍半硅氧烷与胺化合物或常规的玻璃状或橡胶状聚合物混合或通过热/ UV固化来控制气体分离膜的分子结构，气体分离膜的渗透性和选择性可以是 有选择地控制。