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Issue 13, 2017, Issue in Progress
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Adsorption properties of pyridylphenylene dendrimers

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Abstract

Here we report a sorption and surface properties study of the first three generations of polypyridylphenylene dendrimers. A BET analysis of N2 adsorption/desorption isotherms at 77 K yielded specific surface area values not exceeding 100 m2 g−1, while theoretical estimates predicted large pore volumes and surface areas of thousands of square meters per gram. By means of MD simulations, we showed this difference to be due to the close packing of dendrimers in bulk. T-plot and BJH analyses revealed the mesoporous character of the studied systems, with pore sizes comparable to the diameters of the individual dendrimer molecules. The measured adsorption/desorption isotherms of water vapor on dendrimer generations 1 and 3 implied a chemisorption process involving the formation of hydrogen bonds.

Graphical abstract: Adsorption properties of pyridylphenylene dendrimers

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Publication details

The article was received on 20 Nov 2016, accepted on 08 Jan 2017 and first published on 09 Jan 2017


Article type: Paper
DOI: 10.1039/C6RA27064F
Citation: RSC Adv., 2017,7, 7870-7875
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    Adsorption properties of pyridylphenylene dendrimers

    O. Serenko, P. Strashnov, G. Kapustin, M. Kalinin, N. Kuchkina, E. Serkova, Z. Shifrina and A. Muzafarov, RSC Adv., 2017, 7, 7870
    DOI: 10.1039/C6RA27064F

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