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

{"title":"Self-Assembly of Amphiphilic Polyphenylene Dendrimers with Different Surface Functionalization in Solvent/Non-Solvent Mixtures","authors":"Svenja Weigold, Kerstin Brödner, Torsten John, Jan Freudenberg, Uwe H. F. Bunz, Tanja Weil, George Fytas, Klaus Müllen","doi":"10.1002/macp.202400431","DOIUrl":null,"url":null,"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.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 6","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.202400431","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Macromolecular Chemistry and Physics","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/macp.202400431","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

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.

Abstract Image

查看原文本刊更多论文

不同表面功能化的两亲性聚苯树枝状大分子在溶剂/非溶剂混合物中的自组装

本研究利用静态和动态光散射测量比较了纳米级两亲性janus型和贴片聚苯树枝状大分子（PPDs）在溶剂/非溶剂混合物中的自组装。第一代和第二代（G1和G2）树状大分子被不同极性的取代基功能化，即极性新戊基磺酸或磺酸基与非极性丙基结合。新戊基磺酸PPDs产生确定的超分子组装结构，而不考虑其两亲性表面功能化或尺寸。相比之下，具有磺酸取代的ppd的自组装表现出对取代模式和生成的明显依赖。特别是，与修补过的树突分子相比，Janus树突分子表现出更强的自组装倾向。这种趋势在G2的ppd中比G1的ppd更为明显。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.