Synthesis and characterization of new aromatic poly(ether imide)s and their gas transport properties

Koley, Tapas; Bandyopadhyay, Parthasarathi; Mohanty, Aruna Kumar; Banerjee, Susanta

doi:10.1016/j.eurpolymj.2013.10.001

Cited by 25 publications

(15 citation statements)

References 34 publications

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“…However, they are not the only factors controlling gas permeation, and their usefulness in drawing more general relationships between structure and permeation properties is limited. This is in accordance with our earlier conclusions and with other literature data …”

Section: Resultssupporting

confidence: 94%

Synthesis and thermal, mechanical and gas permeation properties of aromatic polyimides containing different linkage groups

Sava¹,

Chişcă²,

Wolińska‐Grabczyk

et al. 2014

Polym. Int.

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Two series of aromatic polyimides containing various linkage groups based on 2,7-bis(4-aminophenoxy)naphthalene or 3,3 ′ -dimethyl-4,4 ′ -diaminodiphenylmethane and different aromatic dianhydrides, namely 4,4 ′ -(4,4 ′ -isopropylidenediphenoxy) bis(phthalic anhydride), 4,4 ′ -(hexafluoroisopropylidene)bis(phthalic anhydride), 3,3 ′ ,4,4 ′ benzophenonetetracarboxylic dianhydride, 9,9-bis[4-(3,4-dicarboxyphenoxy)phenyl]fluorene dianhydride and 4,4 ′ -(4,4 ′ -hexafluoroisopropylidenediphenoxy)bis (phthalic anhydride), were synthesized and compared with regard to their thermal, mechanical and gas permeation properties. All these polymers showed high thermal stability with initial decomposition temperature in the range 475-525 ∘ C and glass transition temperature between 208 and 286 ∘ C. Also, the polymer films presented good mechanical characteristics with tensile strength in the range 60-91 MPa and storage modulus in the range 1700-2375 MPa. The macromolecular chain packing induced by dianhydride and diamine segments was investigated by examining gas permeation through the polymer films. The relationships between chain mobility and interchain distance and the obtained values for gas permeability are discussed.

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Section: Resultssupporting

confidence: 94%

Synthesis and thermal, mechanical and gas permeation properties of aromatic polyimides containing different linkage groups

Sava¹,

Chişcă²,

Wolińska‐Grabczyk

et al. 2014

Polym. Int.

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“…However, for these PAE membranes permselectivity of O 2 /N 2 gas pair was controlled by both the diffusion selectivity and solubility selectivity, where the latter was the predominant factor. Similar types of results have also been reported in the past for other polymer systems [44][45][46][47]. There could be a number of reasons behind high O 2 /N 2 solubility selectivity of these PAEs.…”

Section: Tablesupporting

confidence: 81%

Fluorinated poly(arylene ether)s with aliphatic chain appended cardo moiety: Synthesis and gas transport properties

Ghosh

Banerjee

2014

Journal of Membrane Science

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“…Therefore, they could meet specific end-use needs where excellent physical and mechanical properties are required together with outstanding thermal and chemical stability. [17,18] On the other hand, sepiolite is a natural clay mineral, i.e. hydrated magnesium silicate with the half-unit cell formula of Mg 8 Si 12 O 30 (OH) 4 .12H 2 O.…”

Section: Introductionmentioning

confidence: 99%

“…They reveal a combination of flexibility that is related to their ether linkages and superior thermal stability, which is attributed to the heterocyclic imide rings arranged alternatively in polymer structural units. Therefore, they could meet specific end‐use needs where excellent physical and mechanical properties are required together with outstanding thermal and chemical stability …”

Section: Introductionmentioning

confidence: 99%

Poly(ether‐imide) and related sepiolite nanocomposites: investigation of physical, thermal, and mechanical properties

Tabatabaei-Yazdi

Mehdipour‐Ataei

2015

Polymers for Advanced Techs

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Novel poly(ether-imide) and sepiolite nanocomposites were synthesized based on a unique diamine monomer with the aim of improving physical and mechanical properties of final polyimide films. The diamine was polycondensed with 4,4′-(hexafluoroisopropylidene) diphthalic anhydride to produce related poly(ether amic acid) prepolymer. Pure poly(ether-imide) and nanocomposite films were prepared via thermal imidization process of poly(ether amic acid). Coexistence of ether, pyridine, and phenylene functional groups in the diamine chemical structure resulted in flexible polyimide films with significant thermal, physical, and mechanical properties. Thermal stability, glass-transition temperature, dimensional stability, and tensile properties of polymer and nanocomposites were studied and compared. Morphology of nanocomposites was also investigated using scanning and transmission electron microscopic methods to study the distribution and dispersion behavior of sepiolite nanofibers in the polyimide matrix. By introduction of sepiolite nanoparticles, overall improvement of properties was observed in respect to pure polyimides.

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Synthesis and characterization of new aromatic poly(ether imide)s and their gas transport properties

Cited by 25 publications

References 34 publications

Synthesis and thermal, mechanical and gas permeation properties of aromatic polyimides containing different linkage groups

Synthesis and thermal, mechanical and gas permeation properties of aromatic polyimides containing different linkage groups

Fluorinated poly(arylene ether)s with aliphatic chain appended cardo moiety: Synthesis and gas transport properties

Poly(ether‐imide) and related sepiolite nanocomposites: investigation of physical, thermal, and mechanical properties

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