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PY181 Pigment Microspheres of Nanoplates Synthesized via Polymer-Induced Liquid Precursors

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2009

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Ma, Yurong
Mehltretter, Gerald
Plüg, Carsten
Rademacher, Nadine
Schmidt, Martin U.

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https://doi.org/10.1002/adfm.200900316
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Advanced Functional Materials. 2009, 19(13), pp. 2095-2101. ISSN 1616-301X. eISSN 1616-3028. Available under: doi: 10.1002/adfm.200900316

Zusammenfassung

Organic pigments are important crystalline substances, and their properties and applications rely on size and shape control. Pigment Yellow 181 (PY181) is an industrial azo pigment that is light and weatherfast and suitable for high temperature processing. One disadvantage is its needle-like shape in the default β-phase, which makes the pigment difficult to process in industry, e.g., in polymer melts, where a spherical structure would be ideal. Here, we show for the first time, that polymer-induced liquid precursor structures can be formed even in association to a chemical reaction. Furthermore, it is demonstrated that biomineralization principles can be exploited for the generation of advanced functional materials, such as pigments with novel complex morphology and different properties. Stable PY181 microspheres of nanoplates in the β-phase were obtained in mixed solvents of water and isopropanol by direct azo coupling under the directing influence of a designed copolymer additive aminobenzoylaminobenzamide-acetoacetyl-poly(ethylene imine)-block-poly(ethylene glycol) (ABABA-acetoacetyl-PEI-b-PEG).

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540 Chemie

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ISO 690MA, Yurong, Gerald MEHLTRETTER, Carsten PLÜG, Nadine RADEMACHER, Martin U. SCHMIDT, Helmut CÖLFEN, 2009. PY181 Pigment Microspheres of Nanoplates Synthesized via Polymer-Induced Liquid Precursors. In: Advanced Functional Materials. 2009, 19(13), pp. 2095-2101. ISSN 1616-301X. eISSN 1616-3028. Available under: doi: 10.1002/adfm.200900316
BibTex
@article{Ma2009-07-10PY181-40146,
  year={2009},
  doi={10.1002/adfm.200900316},
  title={PY181 Pigment Microspheres of Nanoplates Synthesized via Polymer-Induced Liquid Precursors},
  number={13},
  volume={19},
  issn={1616-301X},
  journal={Advanced Functional Materials},
  pages={2095--2101},
  author={Ma, Yurong and Mehltretter, Gerald and Plüg, Carsten and Rademacher, Nadine and Schmidt, Martin U. and Cölfen, Helmut}
}
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