Self-Assembly of Amphiphilic Polyphenylene Dendrimers with Different Surface Functionalization in Solvent/Non-Solvent Mixtures

IF 2.5 4区化学 Q3 POLYMER SCIENCE

Macromolecular Chemistry and Physics Pub Date : 2025-01-30 DOI:10.1002/macp.202400431

Svenja Weigold, Kerstin Brödner, Torsten John, Jan Freudenberg, Uwe H. F. Bunz, Tanja Weil, George Fytas, Klaus Müllen

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Abstract

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.

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来源期刊

Macromolecular Chemistry and Physics 化学-高分子科学

CiteScore

4.30

自引率

4.00%

发文量

278

审稿时长

1.4 months

期刊介绍： Macromolecular Chemistry and Physics publishes in all areas of polymer science - from chemistry, physical chemistry, and physics of polymers to polymers in materials science. Beside an attractive mixture of high-quality Full Papers, Trends, and Highlights, the journal offers a unique article type dedicated to young scientists – Talent.