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Heterogenous deswelling of PNIPAM-PNIPMAM copolymer microgels
Abstract: In this proposal our aim is that of establishing a link between the Volume Phase Transition (VPT) and the formation of segregation and local homopolymer domains in microgels formed by two distinct thermoresponsive polymers (copolymer microgels). For this purpose, changes in the internal structure of copolymer microgels formed by PNIPAM and PNIPMAM as a function of the molar composition and temperature will be investigated by SANS measurements of dilute suspensions. The use of partially deuterated polymers will allow us to selectively investigate the contribution of each polymer to the formation of domains across the VPT. Model fitting and comparison with monomer-resolved simulations will allow us to link the macroscopic responsiveness to the microscopic internal structure.
Local Contact: Dr Steve King
Experimenter: Dr Elena Buratti
Experimenter: Professor Marco Laurati
Experimenter: Dr Francesco Brasili
Experimenter: Dr Emanuela Zaccarelli
Experimenter: Dr Jacopo Vialetto
DOI: 10.5286/ISIS.E.RB2320109
ISIS Experiment Number: RB2320109
Part DOI | Instrument | Public release date | Download Link |
---|---|---|---|
10.5286/ISIS.E.RB2320109-1 | SANS2D | 15 December 2026 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
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For Example:
Dr Steve King et al; (2023): Heterogenous deswelling of PNIPAM-PNIPMAM copolymer microgels, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2320109
Data is released under the CC-BY-4.0 license.