Intrinsically Microporous Soluble Polyimides Incorporating Troger's Base for Membrane Gas Separation
- Title
- Intrinsically Microporous Soluble Polyimides Incorporating Troger's Base for Membrane Gas Separation
- Author
- 성종근
- Keywords
- SPONTANEOUS MOLECULAR-ORIENTATION; TRANSPORT-PROPERTIES; AROMATIC POLYIMIDES; FREE-VOLUME; FUNCTIONALIZED POLYIMIDES; FLUORINATED POLYIMIDES; THERMAL IMIDIZATION; CHEMICAL-STRUCTURE; POLYMER MEMBRANES; CHAIN ORIENTATION
- Issue Date
- 2014-05
- Publisher
- AMER CHEMICAL SOC
- Citation
- MACROMOLECULES, MAY 27 2014, 47(10), p3254-p3262, 9p.
- Abstract
- Polyimides with intrinsic microporosity were readily prepared by introducing Troger's base (TB) into the polymer backbone via polymerization between imide-containing diamines and dimethoxymethane (DMM). Two imide-containing diamines were prepared by reaction of 2,5-dimethyl-1,4-phenylenediamine (DPD) with 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) and 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA). The resulting polyimides were readily soluble in common organic solvents, had good mechanical properties, with tensile strength in the range of 59-64 MPa and elongation at break of 5-17%, good thermal stability and extremely high glass transition temperatures (T(g)s), up to 425 degrees C. The polyimides with incorporated TB units had high fractional free volume (FFV >= 0.215) resulting from poor chain-packing and exhibited significant microporosity and good gas transport properties. The novel polymer architecture in this study extends the development of polyimides with intrinsic microporosity for membrane-based gas separation.
- URI
- https://pubs.acs.org/doi/10.1021/ma5007073http://hdl.handle.net/20.500.11754/46239
- ISSN
- 0024-9297
- DOI
- 10.1021/ma5007073
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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