Langmuir

, volume 30 , issue 24 , pages 7168-7176

Inner Structure of Adsorbed Ionic Microgel Particles

Stefan Wellert ¹

Yvonne Hertle ²

Martin Medebach ³

David Magerl ⁴

Weinan Wang ⁴

B. Demé ⁵

Aurel Radulescu ⁶

Peter Müller-Buschbaum ⁴

Thomas Hellweg ²

Hide authors affiliations Show authors affiliations: 6 affiliations

Stranski-Laboratorium für Physikalische und Theoretische Chemie, Technische Universität Berlin, Straße des 17. Juni 124,10623 Berlin,Germany |

Physikalische und Biophysikalische Chemie (PC III), Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany |

Technical University, Berlin, |

⁴

Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany |

⁵

Institut Laue Langevin, 6 Rue Jules Horowitz, 38042 Grenoble, France |

⁶

Heinz Maier Leibnitz Zentrum, Lichtenbergstraße 1, 85747 Garching, Germany |

Publication type: Journal Article

Publication date: 2014-06-12

American Chemical Society (ACS)

Langmuir

scimago Q1

wos Q2

SJR: 0.763

CiteScore: 6.0

Impact factor: 3.9

ISSN: 07437463, 15205827

DOI: 10.1021/la500390j

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PubMed ID: 24920223

Spectroscopy

Electrochemistry

Condensed Matter Physics

General Materials Science

Surfaces and Interfaces

Abstract

Microgel particles of cross-linked poly(NIPAM-co-acrylic acid) with different acrylic acid contents are investigated in solution and in the adsorbed state. As a substrate, silicon with a poly(allylamine hydrochloride) (PAH) coating is used. The temperature dependence of the deswelling of the microgel particles was probed with atomic force microscopy (AFM). The inner structure of the adsorbed microgel particles was detected with grazing incidence small angle neutron scattering (GISANS). Small angle neutron scattering (SANS) on corresponding microgel suspensions was performed for comparison. Whereas the correlation length of the polymer network shows a divergence in the bulk samples, in the adsorbed microgel particles it remains unchanged over the entire temperature range. In addition, GISANS indicates changes in the particles along the surface normal. This suggests that the presence of a solid surface suppresses the divergence of internal fluctuations in the adsorbed microgels close to the volume phase transition.

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GOST Copy

Wellert S. et al. Inner Structure of Adsorbed Ionic Microgel Particles // Langmuir. 2014. Vol. 30. No. 24. pp. 7168-7176.

GOST all authors (up to 50) Copy

Wellert S., Hertle Y., Medebach M., Magerl D., Wang W., Demé B., Radulescu A., Müller-Buschbaum P., Hellweg T. Inner Structure of Adsorbed Ionic Microgel Particles // Langmuir. 2014. Vol. 30. No. 24. pp. 7168-7176.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1021/la500390j

UR - https://doi.org/10.1021/la500390j

TI - Inner Structure of Adsorbed Ionic Microgel Particles

T2 - Langmuir

AU - Wellert, Stefan

AU - Hertle, Yvonne

AU - Medebach, Martin

AU - Magerl, David

AU - Wang, Weinan

AU - Demé, B.

AU - Radulescu, Aurel

AU - Müller-Buschbaum, Peter

AU - Hellweg, Thomas

PY - 2014

DA - 2014/06/12

PB - American Chemical Society (ACS)

SP - 7168-7176

IS - 24

VL - 30

PMID - 24920223

SN - 0743-7463

SN - 1520-5827

ER -

BibTex |

Cite this

BibTex (up to 50 authors) Copy

@article{2014_Wellert,

author = {Stefan Wellert and Yvonne Hertle and Martin Medebach and David Magerl and Weinan Wang and B. Demé and Aurel Radulescu and Peter Müller-Buschbaum and Thomas Hellweg},

title = {Inner Structure of Adsorbed Ionic Microgel Particles},

journal = {Langmuir},

year = {2014},

volume = {30},

publisher = {American Chemical Society (ACS)},

month = {jun},

url = {https://doi.org/10.1021/la500390j},

number = {24},

pages = {7168--7176},

doi = {10.1021/la500390j}

}

MLA

Cite this

MLA Copy

Wellert, Stefan, et al. “Inner Structure of Adsorbed Ionic Microgel Particles.” Langmuir, vol. 30, no. 24, Jun. 2014, pp. 7168-7176. https://doi.org/10.1021/la500390j.

Publisher

American Chemical Society (ACS)

Journal

Langmuir

scimago Q1

wos Q2

SJR

0.763

CiteScore

6.0

Impact factor

3.9

ISSN

07437463 (Print)

15205827 (Electronic)