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000874707 037__ $$aFZJ-2020-01622
000874707 1001_ $$0P:(DE-Juel1)171604$$aKyrey, Tetyana$$b0$$ufzj
000874707 1112_ $$aAPS March Meeting 2020$$cDenver$$d2020-03-02 - 2020-03-06$$wUSA
000874707 245__ $$aStructure and dynamics of homogeneously and heterogeneously crosslinked PNIPAM microgels
000874707 260__ $$c2020
000874707 3367_ $$033$$2EndNote$$aConference Paper
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000874707 520__ $$aThermoresponsive poly(N-isopropylacrylamide) microgel particles have been largely studied in the past due to their interesting fundamental properties as well as their potential for application in drug delivery, sensor technology or biotechnology. In this contribution, microgel particles with homogeneous and heterogeneous crosslink distribution and different crosslinker concentrations will be studied with small angle neutron scattering (SANS) and neutron spin echo spectroscopy (NSE).The segmental dynamics of polymer chains in solution, as described by the Zimm model, is modified in microgels due to the presence of crosslinks and the crowded environment inside the particle, both inducing heterogeneities, for example “frozen” inhomogeneities or density fluctuations. Such structural heterogeneities have an impact on the segmental chain dynamics, which makes NSE, the highest resolution neutron spectroscopy technique, the experiment of choice for accessing variations and changes induced by changes in crosslink distribution and crosslink density.An outlook on interface effects on the internal structure and inhomogeneities of microgel particles will be given.*Support of the DFG (grant number WE5066/3-1 (S. Wellert) and HO 5488/2-1 (O. Holderer) is acknowledged.
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000874707 65017 $$0V:(DE-MLZ)GC-1602-2016$$2V:(DE-HGF)$$aPolymers, Soft Nano Particles and  Proteins$$x0
000874707 65027 $$0V:(DE-MLZ)SciArea-210$$2V:(DE-HGF)$$aSoft Condensed Matter$$x0
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000874707 693__ $$0EXP:(DE-MLZ)KWS1-20140101$$1EXP:(DE-MLZ)FRMII-20140101$$5EXP:(DE-MLZ)KWS1-20140101$$6EXP:(DE-MLZ)NL3b-20140101$$aForschungs-Neutronenquelle Heinz Maier-Leibnitz $$eKWS-1: Small angle scattering diffractometer$$fNL3b$$x4
000874707 7001_ $$0P:(DE-HGF)0$$aWitte, Judith$$b1
000874707 7001_ $$0P:(DE-Juel1)129542$$aStingaciu, Laura$$b2
000874707 7001_ $$0P:(DE-HGF)0$$aWitt, Marcus$$b3
000874707 7001_ $$0P:(DE-HGF)0$$avon Klitzing, Regine$$b4
000874707 7001_ $$0P:(DE-HGF)0$$aWellert, Stefan$$b5
000874707 7001_ $$0P:(DE-Juel1)130718$$aHolderer, Olaf$$b6$$eCorresponding author$$ufzj
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000874707 9141_ $$y2020
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