POLYIMIDE, PRODUCTION METHOD OF POLYIMIDE, SEPARATION FILM, PRODUCTION METHOD OF SEPARATION FILM, AND GAS SEPARATION METHOD
|Posted date||May 15, 2020|
|International application number||2018JP048438|
|International publication number||WO 2019138932|
|Date of international filing||Dec 28, 2018|
|Date of international publication||Jul 18, 2019|
|Title||POLYIMIDE, PRODUCTION METHOD OF POLYIMIDE, SEPARATION FILM, PRODUCTION METHOD OF SEPARATION FILM, AND GAS SEPARATION METHOD|
|Abstract||The present invention is intended to provide a polyimide having a new structure that can be produced at low cost. In order to achieve the aforementioned object, the present invention provides a polyimide or salt thereof, including: a structure represented by the following chemical formula (I): wherein in the chemical formula (I), Ar11, Ar12, and Ar20 each are an atomic group including at least one selected from the group consisting of an aromatic ring, a heteroaromatic ring, a non-aromatic ring, and a non-ring structure, and may further include a substituent, Sp is a spiro ring and may further include a substituent, and n is a positive integer and denotes a degree of polymerization.|
|Outline of related art and contending technology||
Polyimides are used in the fields of a gas separation film and the like (for example, Non-Patent Literature 1).
Yampolskii et al, Macromolecules 2009, 42, 7881-7888.
Conventional polyimides, however, have a problem of high cost in production because of a number of synthesis steps and high cost of raw materials, and the like, for example.
Hence, the present invention is intended to provide a polyimide having a new structure that can be produced at low cost.
|IPC(International Patent Classification)|
National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
Contact Information for " POLYIMIDE, PRODUCTION METHOD OF POLYIMIDE, SEPARATION FILM, PRODUCTION METHOD OF SEPARATION FILM, AND GAS SEPARATION METHOD "
- Kyoto University Office of Society-Academia Collaboration for Innovation
- URL: https://www.saci.kyoto-u.ac.jp/
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