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Structure of responsive PNIPAM-PAAc microgels
Abstract: We propose to investigate a temperature and pH responsive microgel composed of Interpenetrating Polymer Networks (IPN) of poly(N-isopropylacrylamide) (PNIPAM) and poly(acrylic) acid (PAAc). The dynamical and structural behaviour of both PNIPAM and IPN microgels as a function of temperature, concentration, pH and acrylic acid content has been widely investigated by our group by combining DLS, SANS, SAXS, XPCS, Raman spectroscopy, TEM and electrophoretic measurements.In this experiment we want to perform SANS measurements with a contrast-matched deuterated PNIPAM to follow changes in the PAAc conformational distribution within the PNIPAM network. At the same time, we will explore how these structural changes affect the gel dynamics by performing simultaneous DLS measurements using apparatus newly-developed as part of a joint CNR-ISIS project.
Principal Investigator: Dr Barbara Ruzicka
Experimenter: Dr Elena Buratti
Experimenter: Dr Roberta Angelini
Experimenter: Dr Valentina Nigro
Local Contact: Dr Steve King
Experimenter: Dr Silvia Franco
DOI: 10.5286/ISIS.E.RB1920355
ISIS Experiment Number: RB1920355
Part DOI | Instrument | Public release date | Download Link |
---|---|---|---|
10.5286/ISIS.E.RB1920355-1 | ZOOM | 09 March 2023 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
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publication is as:
[author], [date], [title], [publisher],
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For Example:
Dr Barbara Ruzicka et al; (2020): Structure of responsive PNIPAM-PAAc microgels, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920355
Data is released under the CC-BY-4.0 license.