RT info:eu-repo/semantics/article
T1 Viscoelastic property enhancement of polymethylmethacrylate molecularly confined within 3D nanostructures
A1 Martín de León, Judit
A1 Pura Ruiz, José Luis
A1 Rodríguez Méndez, María Luz
A1 Rodríguez Pérez, Miguel Ángel
K1 Three-dimensional polymer confinement
K1 Amplitude modulation–frequency modulation atomic force microscopy
K1 Nanocellular polymer
K1 Mechanical property
K1 Loss tangent
K1 Confined polymethylmethacrylate
AB Owing to its applications in various fields, such as biomedical, microelectronics, sensors, and polymer composites, polymer nanoconfinement is a widely studied topic. This confinement changes the configuration of molecules compared with those of solids, which, in the case of polymeric films, decreases the glass transition temperature and mechanical properties of the polymer. In this study, nanostructured polymethylmethacrylate, presenting three-dimensional nanoscale confinement were evaluated using amplitude modulation–frequency modulation atomic force microscopy for the first time. The Young’s moduli and loss tangents were measured, and the results suggest that for cells smaller than approximately 39 nm, the Young’s modulus of the 3-D confined polymer enhances that of the raw solid owing to reduced molecular mobility. This research shows that the molecular mobility was reduced because polymer chains were confined within three-dimensional space.
PB Elsevier
SN 0014-3057
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/73077
UL https://uvadoc.uva.es/handle/10324/73077
LA eng
NO European Polymer Journal, 2024, vol. 214, 113181
NO Producción Científica
DS UVaDOC
RD 07-feb-2025