The fabrication of ultrathin films and their gas separation performance from polymers of intrinsic microporosity with two-dimensional (2D) and three-dimensional (3D) chain conformations

Benito, J. ; Vidal, J. ; Sánchez-Laínez, J. (Universidad de Zaragoza) ; Zornoza, B. ; Téllez, C. (Universidad de Zaragoza) ; Martín, S. (Universidad de Zaragoza) ; Msayib, K.J. ; Comesaña-Gándara, B. ; McKeown, N.B. ; Coronas, J. (Universidad de Zaragoza) ; Gascón, I. (Universidad de Zaragoza)

Resumen: The expansion of the use of polymeric membranes in gas separation requires the development of membranes based on new polymers with improved properties and their assessment under real operating conditions. In particular, the fabrication of ultrathin films of high performance polymers that can be used as the selective layer in composite membranes will allow large reductions in the amount of the expensive polymer used and, hence, the cost of membrane fabrication. In this contribution, two polymers of intrinsic microporosity (PIMs) with very different chain configurations (two-dimensional, 2D, chains or conventional contorted three-dimensional, 3D, conformation) have been compared in their ability to form ultrathin films, showing the relevance of polymer design to obtain compact and defect-free films. Monolayers of the 2D polymer PIM-TMN-Trip can be efficiently deposited onto poly[1-(trimethylsilyl)-1-propyne] (PTMSP) to obtain composite membranes with a CO2/N2 selectivity similar to that of the corresponding thick membranes of the same PIM using only a small fraction of the selective polymer (less than 0.1%).

Idioma: Inglés

DOI: 10.1016/j.jcis.2018.10.075

Año: 2019

Publicado en: Journal of Colloid and Interface Science 536 (2019), 474-482
ISSN: 0021-9797

Factor impacto JCR: 7.489 (2019)

Categ. JCR: CHEMISTRY, PHYSICAL rank: 31 / 158 = 0.196 (2019) - Q1 - T1

Factor impacto SCIMAGO: 1.45 - Biomaterials (Q1) - Surfaces, Coatings and Films (Q1) - Electronic, Optical and Magnetic Materials (Q1) - Colloid and Surface Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E31-17R
Financiación: info:eu-repo/grantAgreement/ES/DGA/FSE
Financiación: info:eu-repo/grantAgreement/EC/FP7/608490/EU/Energy efficient MOF-based Mixed Matrix Membranes for CO2 Capture/M4CO2
Financiación: info:eu-repo/grantAgreement/ES/MEC/FPU2014
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2016-77290-R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Química Física (Dpto. Química Física)