Influence of Branching of Polythiophenes on the Microporosity

A chain growth polymerization of a branched polythiophene (BT) using a Pd(Ruphos) catalyst, as a promising route to synthesize microporous conjugated polymers with well‐defined structures is reported. From N2 adsorptions/desorption isotherm measurements, a Brunauer–Emmett–Teller surface area of 40.7...

Celý popis

Uloženo v:
Podrobná bibliografie
Vydáno v:Macromolecular chemistry and physics Ročník 219; číslo 12
Hlavní autoři: Mulunda, Mikael Monga, Zhang, Zidan, Nies, Eric, Goethem, Cédric, Vankelecom, Ivo F. J., Koeckelberghs, Guy
Médium: Journal Article
Jazyk:angličtina
Vydáno: Weinheim Wiley Subscription Services, Inc 01.06.2018
Témata:
Addition polymerization
branched polythiophene
Carbon dioxide
Chain branching
Chemical synthesis
conjugated polymers
controlled polymerization
gas separation membranes
Mathematical analysis
Microporosity
Polythiophene
Surface area
ISSN:1022-1352, 1521-3935
On-line přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
Popis
Shrnutí:A chain growth polymerization of a branched polythiophene (BT) using a Pd(Ruphos) catalyst, as a promising route to synthesize microporous conjugated polymers with well‐defined structures is reported. From N2 adsorptions/desorption isotherm measurements, a Brunauer–Emmett–Teller surface area of 40.7 m2 g−1 is calculated for the BT, significantly higher than that of the linear poly(3‐hexylthiophene) (P3HT) (25.7 m2 g−1). The same trend is confirmed by simulations of the two polymer structures, from which a geometric surface area (SAgeo) of 140 ± 15.8 m2 g−1 is calculated for the BT, much more higher than for the P3HT with a SAgeo of 6.7 ± 7.1 m2 g−1. Moreover, the BT is soluble in common organic solvent and is readily processed in membrane with a CO2/N2 selectivity up to 24. A branched polythiophene (BT) is synthesized via a controlled polymerization and shows a higher microporosity (Brunauer–Emmett–Teller (BET) = 40.7 m2 g−1) than the linear poly(3‐hexylthiophene) (P3HT) (BET = 25.7 m2 g−1), which trend is confirmed by simulations.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1022-1352
1521-3935
DOI:10.1002/macp.201800024