Controlling the aggregation of 5,10,15,20-tetrakis-(4-sulfonatophenyl)- porphyrin by the use of polycations derived from polyketones bearing charged aromatic groups

Claudio Toncelli, Juan Pablo Pino-Pinto, Naoki Sano, Francesco Picchioni, Antonius A. Broekhuis, Hiroyuki Nishide, Ignacio Moreno-Villoslada*

*この研究の対応する著者

研究成果: Article査読

33 被引用数 (Scopus)

抄録

The interaction between 5,10,15,20-tetrakis-(4-sulfonatophenyl)-porphyrin and different polycations is studied by UVevis spectroscopy. Two polycations containing charged aromatic residues (imidazolium and pyridinium) have been easily synthesized by PaaleKnorr reaction of alternating aliphatic polyketones with histamine and 4-picolylamine. It was found that these polymers stabilize the tetra-anionic form of the porphyrin at acidic conditions, and avoid the formation of H- and J-type self-aggregates. Other polycations such as poly(allylamine) and poly(decylviologen) enhance porphyrin selfaggregation. As the latter polymer has also aromatic charged groups, the influence of the polymer structure as a whole in the behavior of the porphyrin/polycation system is highlighted. In this context, similar but not equal results have been found comparing the influence of the polyketone derivative containing pyridinium groups and the polycation poly(4-vinylpyridine) on the porphyrin selfaggregation and acidebase behavior.

本文言語English
ページ(範囲)51-63
ページ数13
ジャーナルDyes and Pigments
98
1
DOI
出版ステータスPublished - 2013 7月

ASJC Scopus subject areas

  • 化学工学(全般)
  • プロセス化学およびプロセス工学

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