Inner structure of adsorbed ionic microgel particles.
Inner structure of adsorbed ionic microgel particles.
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吸附离子微凝胶颗粒的内部结构
DOI:
10.1021/la500390j
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
von Klitzing
中科院分区:
文献类型:
--
作者:
Wellert;Hertle;Richter;Medebach;Magerl;Radulescu;Müller-Buschbaum;Hellweg;von Klitzing
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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DOI:
10.1021/la800092q
发表时间:
2008-06
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
Courtney D. Sorrell;L. Lyon
通讯作者:
Courtney D. Sorrell;L. Lyon
影响因子:
5.5
作者:
Fumiyoshi Ikkai;Takuya Suzuki;T. Karino;M. Shibayama
通讯作者:
Fumiyoshi Ikkai;Takuya Suzuki;T. Karino;M. Shibayama
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
F. Formisano;J. Teixeira
通讯作者:
J. Teixeira
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Denis Korolkov;P. Busch;L. Willner;E. Kentzinger;U. Rücker;A. Paul;H. Frielinghaus;T. Brückel
通讯作者:
T. Brückel
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
P. Müller‐Buschbaum;J. Gutmann;M. Stamm;R. Cubitt
通讯作者:
R. Cubitt