TY - JOUR
T1 - Synthesis and properties of new aromatic polyimides containing spirocyclic structures
AU - Terraza, C. A.
AU - Tagle, L. H.
AU - Santiago-García, J. L.
AU - Canto-Acosta, R. J.
AU - Aguilar-Vega, M.
AU - Hauyon, R. A.
AU - Coll, D.
AU - Ortiz, P.
AU - Perez, G.
AU - Herrán, L.
AU - Comesaña-Gándara, B.
AU - McKeown, N. B.
AU - Tundidor-Camba, A.
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/2/14
Y1 - 2018/2/14
N2 - The synthesis of three novel aromatic polyimides (PIs) containing spiro units is described. These PIs are soluble at room temperature in most common organic solvents, facilitating their processability. Additionally, they are highly thermally stable, with thermal decomposition temperatures (Td10%) over 500 °C, and had moderately high Tg values between 230 and 265 °C. Robust self-standing thin films were prepared from these polyimides, via the solution casting method, which were suitable for gas transport measurements. The relatively low permeability and selectivity of these PIs, as compared to Polymers of Intrinsic Microporosity (PIMs) that also contain spirocyclic structures, demonstrate the importance of restricting rotation within the polymer chain, which is a key structural feature of the PIMs.
AB - The synthesis of three novel aromatic polyimides (PIs) containing spiro units is described. These PIs are soluble at room temperature in most common organic solvents, facilitating their processability. Additionally, they are highly thermally stable, with thermal decomposition temperatures (Td10%) over 500 °C, and had moderately high Tg values between 230 and 265 °C. Robust self-standing thin films were prepared from these polyimides, via the solution casting method, which were suitable for gas transport measurements. The relatively low permeability and selectivity of these PIs, as compared to Polymers of Intrinsic Microporosity (PIMs) that also contain spirocyclic structures, demonstrate the importance of restricting rotation within the polymer chain, which is a key structural feature of the PIMs.
KW - Aromatic polyimides
KW - Gas separation membranes
KW - Polymer of intrinsic microporosity
UR - https://www.scopus.com/pages/publications/85040679294
U2 - 10.1016/j.polymer.2018.01.013
DO - 10.1016/j.polymer.2018.01.013
M3 - Article
AN - SCOPUS:85040679294
SN - 0032-3861
VL - 137
SP - 283
EP - 292
JO - Polymer
JF - Polymer
ER -