ISIS Neutron and Muon Source Data Journal

Characterization at low Q values of a thermo and pH-sensitive hydrogel

Abstract: Among soft colloidal systems microgels, aqueous dispersions of nanometer or micrometer-seized hydrogel particles, have been the subject of intense research in the last years because of their versatility and high sensitivity to external stimuli. In particular the responsive hydrogel we are investigating is composed of Interpenetrated Polymer Network (IPN) of poly(N-isopropylacrylamide) (PNIPAM), a thermo-sensitive polymer, and polyacrylic acid (AAc), a pH-sensitive polymer, dispersed in water. The existence of a thermoreversible transition corresponding to the swollen-shrunken volume phase transition due to the presence of PNIPAM has been highlighted. Adding PAAc introduces an additional pH-sensitivity with respect to the temperature-sensitivity and leads to interesting differences in the transition process at acidic and neutral pH which need to be accurately investigated.

Principal Investigator: Professor Maria Antonietta Ricci
Experimenter: Professor Fabio Bruni
Experimenter: Dr Roberta Angelini
Experimenter: Dr Valentina Nigro
Experimenter: Dr Barbara Ruzicka

DOI: 10.5286/ISIS.E.RB1510563

ISIS Experiment Number: RB1510563

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], [doi]

For Example:
Professor Maria Antonietta Ricci et al; (2015): Characterization at low Q values of a thermo and pH-sensitive hydrogel, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510563

Data is released under the CC-BY-4.0 license.