Synthesis and Characterization of Ionene-Polyamide Materials as Candidates for New Gas Separation Membranes

Bara, Jason E ; O'Harra, Kathryn E ; Durbin, Marlow M ; Dennis, Grayson P ; Jackson, Enrique M [Point of Contact] ; Thomas, Brian ; Odutola, Jamiu A

关键词: MEMBRANES;    CHARACTERIZATION;    POLYMERS;    THERMOPLASTIC FILMS;    PERMEABILITY;    ADDITIVE MANUFACTURING;   

RP-ID  :  M18-6614

学科分类：材料科学（综合）

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

A new family of six ionenes containing aromatic amide linkages has been synthesized from ready available starting materials at scales up to ~50 g. These ionene-polyamides are all constitutional isomers and vary only in the regiochemistry of the amide linkages (para, meta) and xylyl linkages (ortho, meta, para) which are present in the polymer backbone. This paper details the synthesis of these ionenes and associated characterizations. Ionene-polyamides exhibit relatively low melting points (~150 oC) allowing them to be readily processed into films and other objects. These ionene-polyamide materials are being developed for further study as polymer membranes for the separations of gases such as CO2, N2, CH4 and H2.