PMID- 24920223
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150422
LR  - 20140624
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 30
IP  - 24
DP  - 2014 Jun 24
TI  - Inner structure of adsorbed ionic microgel particles.
PG  - 7168-76
LID - 10.1021/la500390j [doi]
AB  - 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.
FAU - Wellert, Stefan
AU  - Wellert S
AD  - Stranski Laboratorium fur Physikalische und Theoretische Chemie, Technische 
      Universitat Berlin , Strasse des 17 Juni 124, 10623 Berlin, Germany.
FAU - Hertle, Yvonne
AU  - Hertle Y
FAU - Richter, Marcel
AU  - Richter M
FAU - Medebach, Martin
AU  - Medebach M
FAU - Magerl, David
AU  - Magerl D
FAU - Wang, Weinan
AU  - Wang W
FAU - Deme, Bruno
AU  - Deme B
FAU - Radulescu, Aurel
AU  - Radulescu A
FAU - Muller-Buschbaum, Peter
AU  - Muller-Buschbaum P
FAU - Hellweg, Thomas
AU  - Hellweg T
FAU - von Klitzing, Regine
AU  - von Klitzing R
LA  - eng
PT  - Journal Article
DEP - 20140612
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
EDAT- 2014/06/13 06:00
MHDA- 2014/06/13 06:01
CRDT- 2014/06/13 06:00
PHST- 2014/06/13 06:00 [entrez]
PHST- 2014/06/13 06:00 [pubmed]
PHST- 2014/06/13 06:01 [medline]
AID - 10.1021/la500390j [doi]
PST - ppublish
SO  - Langmuir. 2014 Jun 24;30(24):7168-76. doi: 10.1021/la500390j. Epub 2014 Jun 12.