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Ionic Porous Organic Polymers Based on Functionalized Tetraarylborates.


ABSTRACT: Lithium tetrakis(4-boronatoaryl)borates were subjected to polycondensation reactions with selected polyhydroxyl monomers such as 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) and 2,3,6,7-tetrahydroxy-9,10-dimethylanthracene (THDMA). Obtained boronate-type ionic porous polymers TAB1-4 were characterized by PXRD, 6Li and 11B magic-angle spinning nuclear magnetic resonance (MAS NMR), FT-IR, SEM, and TGA. They exhibit relatively good sorption of H2 (up to 75 cm3/g STP), whereas N2 uptake at 77 K for lower pressure range is relatively poor (up to 50 cm3/g STP below P/P0 = 0.8). In addition, the effect of elongation of aryl arms in the tetraarylborate core on the materials' properties was studied. Thus, it was found that replacement of the 4-boronatophenyl with 4-boronatobiphenylyl group has a negative impact on the sorption characteristics.

SUBMITTER: Tomaszewski P 

PROVIDER: S-EPMC6630441 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Ionic Porous Organic Polymers Based on Functionalized Tetraarylborates.

Tomaszewski Patryk P   Wiszniewski Marcin M   Gontarczyk Krzysztof K   Wieciński Piotr P   Durka Krzysztof K   Luliński Sergiusz S  

Polymers 20190621 6


Lithium tetrakis(4-boronatoaryl)borates were subjected to polycondensation reactions with selected polyhydroxyl monomers such as 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) and 2,3,6,7-tetrahydroxy-9,10-dimethylanthracene (THDMA). Obtained boronate-type ionic porous polymers <b>TAB1-4</b> were characterized by PXRD, <sup>6</sup>Li and <sup>11</sup>B magic-angle spinning nuclear magnetic resonance (MAS NMR), FT-IR, SEM, and TGA. They exhibit relatively good sorption of H<sub>2</sub> (up to 75 cm  ...[more]

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