Relationship between gas separation properties and chemical structure in a series of aromatic polyimides

1988 ◽  
Vol 37 (1) ◽  
pp. 45-62 ◽  
Author(s):  
T.H. Kim ◽  
W.J. Koros ◽  
G.R. Husk ◽  
K.C. O'Brien
Keyword(s):  
Gas Separation ◽  
Chemical Structure ◽  
Aromatic Polyimides

Design of gas separation membranes derived of rigid aromatic polyimides. 1. Polymers from diamines containing di-tert-butyl side groups

2010 ◽  
Vol 365 (1-2) ◽  
pp. 145-153 ◽  
Author(s):  
Mariola Calle ◽  
Angel E. Lozano ◽  
Javier de Abajo ◽  
José G. de la Campa ◽  
Cristina Álvarez
Keyword(s):  
Gas Separation ◽  
Aromatic Polyimides ◽  
Tert Butyl ◽  
Separation Membranes ◽  
Gas Separation Membranes

Aromatic polyimides containing pyridine and spirocyclic units: Preparation, thermal and gas separation properties

Polymer ◽  
2019 ◽  
Vol 168 ◽  
pp. 199-208 ◽  
Author(s):  
Shuli Wang ◽  
Shengqi Ma ◽  
Hongru He ◽  
Wenming Ai ◽  
Daming Wang ◽  
...  
Keyword(s):  
Gas Separation ◽  
Aromatic Polyimides

Gas separation performance of C/CMS membranes derived from poly(furfuryl alcohol) (PFA) with different chemical structure

2010 ◽  
Vol 361 (1-2) ◽  
pp. 22-27 ◽  
Author(s):  
Chengwen Song ◽  
Tonghua Wang ◽  
Huawei Jiang ◽  
Xiuyue Wang ◽  
Yiming Cao ◽  
...  
Keyword(s):  
Gas Separation ◽  
Furfuryl Alcohol ◽  
Chemical Structure ◽  
Separation Performance ◽  
Gas Separation Performance

Effect of the chemical structure of various diamines on the gas separation of thermally rearranged poly(benzoxazole-co-imide) (TR-PBO-co-I) membranes

2013 ◽  
Vol 444 ◽  
pp. 365-377 ◽  
Author(s):  
Chye Yang Soo ◽  
Hye Jin Jo ◽  
Young Moo Lee ◽  
Jeffrey R. Quay ◽  
M. Keith Murphy
Keyword(s):  
Gas Separation ◽  
Chemical Structure

scholarly journals Structural and dielectric properties of some epiclon-based polyimide films

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Andreea Irina Cosutchi ◽  
Camelia Hulubei ◽  
Iuliana Stoica ◽  
Marius Dobromir ◽  
Silvia Ioan
Keyword(s):  
Chemical Structure ◽  
Electrical Conductance ◽  
Dielectric Constants ◽  
Isothermal Treatment ◽  
Cross Linking ◽  
Polyimide Films ◽  
Aromatic Polyimides ◽  
Low Dielectric ◽  
Dielectric Layers ◽  
High Roughness

AbstractSurface and electrical properties of two flexible and cross-linked epiclon based polyimide films were investigated. Surface tension measurements indicate an increased hydrophobicity due to both isothermal treatment - which induces imidization and cross-linking - and to the chemical structure, characterized by the different number of ether linkages in the polyimide backbone. Morphology of film surfaces, modified by plasma treatment, shows high roughness and, implicitly, improved adhesion, as required in electronics. The studied polyimides exhibit low dielectric constants and dielectric losses, comparatively to conventional aromatic polyimides. The electrical conductance and resistivity characteristics of these polymers recommend them as good insulators for dielectric layers in microelectronic applications.

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