RT info:eu-repo/semantics/article
T1 New aromatic polyamides and polyimides having an adamantine bulky group
A1 Plaza Lozano, Diego
A1 Comesaña Gándara, Bibiana
A1 Viuda, Mónica de la
A1 Geun Seong, Jong
A1 Palacio Martínez, Laura
A1 Prádanos del Pico, Pedro Lourdes
A1 Campa, José G. de la
A1 Cuadrado Curto, María Purificación
A1 Moo Lee, Young
A1 Hernández Giménez, Antonio
A1 Álvarez, Cristina
A1 Lozano, Ángel E.
K1 Gas separation
K1 Adamantane
K1 Aromatic polyamides
AB This paper reports the synthesis and characterization of a new rigid diamine monomer, having a spiro carbon moiety and an adamantane bulky group in its structure; namely spiro-(adamantane-2,9′(2',7'-diamino)-fluorene) (SADAF). After its synthesis, using a straightforward methodology, a novel family of aromatic polyimides (PIs) and polyamides (PAs) has been attained by reaction of SADAF with three aromatic dianhydrides and two diacid chlorides, respectively. Two of the polyimides were obtained through the formation of the corresponding polyamic acid and subsequent thermal cycloimidization, whereas the other one, the polyimide from SADAF and 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA), could be synthesized by chemical imidization from the polyamic precursor. Regarding polyamides, two new ones, made from SADAF and isophthaloyl chloride (IPC) and the diacid chloride of 2,2-bis(4-carboxyphenyl)hexafluoropropane (6FC) could be obtained. All the polymers showed high Tg, above 350 ºC, and excellent thermal resistance, with onset degradation temperatures higher than 450 ºC. Polymers formed by the combination of SADAF with 6FDA and 6FC were prepared as dense films with good mechanical properties and their permselectivity properties were measured.
PB Elsevier
SN 2352-4928
YR 2015
FD 2015
LK http://uvadoc.uva.es/handle/10324/21912
UL http://uvadoc.uva.es/handle/10324/21912
LA eng
NO Materials Today Communications 2015, vol.5, p.  23–31
NO Producción Científica
DS UVaDOC
RD 27-dic-2024