Influence of Branching of Polythiophenes on the Microporosity

被引：5
作者：
Mulunda, Mikael Monga [1 ,2 ]
Zhang, Zidan [3 ]
Nies, Eric [3 ]
van Goethem, Cedric [2 ]
Vankelecom, Ivo F. J. [2 ]
Koeckelberghs, Guy [1 ,2 ]
机构：
[1] Katholieke Univ Leuven, Lab Polymer Synth, Div Polymer Chem & Mat, Celestijnenlaan 200F, B-3001 Heverlee, Leuven, Belgium
[2] Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Celestijnenlaan 200F, B-3001 Heverlee, Leuven, Belgium
[3] Katholieke Univ Leuven, Lab Phys Chem Polymer Mat, Celestijnenlaan 200F, B-3001 Heverlee, Leuven, Belgium
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 2018年 / 219卷 / 12期
关键词：
branched polythiophene; conjugated polymers; controlled polymerization; gas separation membranes; microporosity; MEMBRANES; POLYMERS; NANOFILTRATION;
D O I：
10.1002/macp.201800024
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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 N-2 adsorptions/desorption isotherm measurements, a Brunauer-Emmett-Teller surface area of 40.7 m(2) g(-1) is calculated for the BT, significantly higher than that of the linear poly(3-hexylthiophene) (P3HT) (25.7 m(2) g(-1)). The same trend is confirmed by simulations of the two polymer structures, from which a geometric surface area (SA(geo)) of 140 +/- 15.8 m(2) g(-1) is calculated for the BT, much more higher than for the P3HT with a SA(geo) of 6.7 +/- 7.1 m(2) g(-1). Moreover, the BT is soluble in common organic solvent and is readily processed in membrane with a CO2/N-2 selectivity up to 24.
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页数：7
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