Interplay between internal structure and optical properties of thermosensitive nanogels
- Ledesma-Motolinía, Mónica Programa de Doctorado en Ciencias e Ingeniería de Materiales, Universidad Autónoma Metropolitana-Azcapotzalco, México D.F., Mexico
- Braibanti, Marco Department of Physics, University of Fribourg, Switzerland
- Rojas-Ochoa, Luis F. Departamento de Física, CINVESTAV-IPN, México D.F, Mexico
- Haro-Pérez, Catalina Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, México D.F., Mexico
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05.10.2015
Published in:
- Colloids and Surfaces A: Physicochemical and Engineering Aspects. - 2015, vol. 482, p. 724–727
English
The structural and optical properties of thermosensitive particles, nanogels, are studied by light scattering and refractometry as a function of temperature. Nanogels are composed of poly- N-Isopropopylacrylamide, a polymer that shrinks at temperatures higher than its lower critical solution temperature, 33 °C. The internal nanogel structure obtained by light scattering is well modeled by assuming a constant radial mass density profile convoluted with a Gaussian function. Moreover, we introduce a simple method that allows us to describe the measured temperature-dependent index of refraction of these complex nanoparticles by using their structural information, core dimension and external radius.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 258045
- DOI 10.1016/j.colsurfa.2015.07.020
- Persistent URL
- https://folia.unifr.ch/unifr/documents/304780
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