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Self-assembly of amphiphilic polyphenylene dendrimers with different surface functionalization in solvent/non-solvent mixtures

This work compares the self-assembly of nanometer-sized amphiphilic Janus-type and patched polyphenylene dendrimers (PPDs) in solvent/non-solvent mixtures utilizing static and dynamic light-scattering measurements. First- and second-generation (G1 and G2) dendrimers are functionalized with substitue...

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Main Authors: Weigold, Svenja (Author) , Brödner, Kerstin (Author) , John, Torsten (Author) , Freudenberg, Jan (Author) , Bunz, Uwe H. F. (Author) , Weil, Tanja (Author) , Fytas, George (Author) , Müllen, Klaus (Author)
Format: Article (Journal)
Language:English
Published: [20 March 2025]
In: Macromolecular chemistry and physics
Year: 2025, Volume: 226, Issue: 6, Pages: 2400431-1-2400431-13
ISSN:1521-3935
DOI:10.1002/macp.202400431
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1002/macp.202400431
Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/macp.202400431
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Author Notes:Svenja Weigold, Kerstin Brödner, Torsten John, Jan Freudenberg, Uwe H. F. Bunz, Tanja Weil, George Fytas, and Klaus Müllen
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Summary:This work compares the self-assembly of nanometer-sized amphiphilic Janus-type and patched polyphenylene dendrimers (PPDs) in solvent/non-solvent mixtures utilizing static and dynamic light-scattering measurements. First- and second-generation (G1 and G2) dendrimers are functionalized with substituents of different polarity, i.e., polar neo-pentyl sulfonate or sulfonic acid groups are combined with non-polar propyl groups. Neo-pentyl sulfonate PPDs give rise to defined supramolecular assembly structures, irrespective of their amphiphilic surface functionalization or size. In contrast, the self-assembly of PPDs with sulfonic acid substitution exhibits a pronounced dependence upon substitution pattern and generation. In particular, the Janus dendrimers demonstrate an increased tendency toward self-assembly compared to their patched counterparts. This trend is more pronounced for G2 than for G1 PPDs.
Item Description:Gesehen am 01.08.2025
Physical Description:Online Resource
ISSN:1521-3935
DOI:10.1002/macp.202400431

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