New polyimides containing methyl benzamidobenzoate or dimethyl benzamidoisophthalate as bulky pendant groups. Effects on solubility, thermal and gas transport properties

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dc.contributor.authorTerraza, Claudio A.
dc.contributor.authorCruz, Yennier
dc.contributor.authorRodriguez, Ary
dc.contributor.authorVictoria Velazquez-Tundidor, Maria
dc.contributor.authorHauyon, Rene A.
dc.contributor.authorRodriguez-Gonzalez, Fidel E.
dc.contributor.authorNiebla, Vladimir
dc.contributor.authorAguilar-Vega, Manuel
dc.contributor.authorSulub-Sulub, Rita
dc.contributor.authorColl, Deysma
dc.contributor.authorOrtiz, Pablo A.
dc.contributor.authorPerez, Yasmin P.
dc.contributor.authorComesana-Gandara, Bibiana
dc.contributor.authorTundidor-Camba, Alain
dc.date.accessioned2025-01-20T21:03:25Z
dc.date.available2025-01-20T21:03:25Z
dc.date.issued2022
dc.description.abstractThis work reports the synthesis of six new polyimides obtained by the reaction of two novel diamine monomers: methyl 4-(3,5-diaminobenzamido)benzoate and dimethyl 5-(3,5-diaminobenzamido)isophthalate, bearing one or two methyl ester groups in their phenyl rings, respectively, with three known dianhydrides, 4,4 '-(hexafluoroisopropylidene) diphatalic anhydride (6FDA), 4,4 '-(dimethylsilanediyl) dipthalic anhydride (SiDA) and 4,4 '-oxydiphthalic anhydride (ODPA). The polyimides were synthesized using the "two-step" method, which first involves forming a poly(amic acid) precursor that is subsequently cyclodehydrated to form the imide linkage. The yields were higher than 95% in all cases, and the structural characterization was performed by spectroscopic techniques like FT-IR, H-1, C-13, and Si-29 NMR. In addition, the effect on the solubility in common organic solvents and thermal and gas transport properties of these polyimides were studied as a function of the nature of the respective side group and the dianhydride used.
dc.description.funderAgencia Nacional de Investigacion y Desarrollo (ANID) through a Fondecyt
dc.fuente.origenWOS
dc.identifier.doi10.1002/app.53036
dc.identifier.eissn1097-4628
dc.identifier.issn0021-8995
dc.identifier.urihttps://doi.org/10.1002/app.53036
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93149
dc.identifier.wosidWOS:000842317500001
dc.issue.numero42
dc.language.isoen
dc.revistaJournal of applied polymer science
dc.rightsacceso restringido
dc.subjectmembranes
dc.subjectpolycondensation
dc.subjectpolyimides
dc.titleNew polyimides containing methyl benzamidobenzoate or dimethyl benzamidoisophthalate as bulky pendant groups. Effects on solubility, thermal and gas transport properties
dc.typeartículo
dc.volumen139
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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