Publications de Sabrina Sant | EPFL Graph Search

Pyroelectric Polyelectrolyte Brushes

Dragan Damjanovic, Harm-Anton Klok, Sabrina Sant, Fei Hu, Jian Wang, Lukas Riemer, Kanghyun Chu

Piezo- and pyroelectric materials are of interest, for example, for energy harvesting applications, for the development of tactile sensors, as well as neuromorphic computing. This study reports the observation of pyro- and piezoelectricity in thin surface- ...

Wiley-V C H Verlag Gmbh2024

Swelling and Degrafting of Poly(3-sulfopropyl methacrylate) Brushes

Harm-Anton Klok, Sabrina Sant, Kuljeet Kaur

Upon exposure to a good solvent, polymer brushes prepared via surface-initiated polymerization can undergo degrafting via cleavage of bonds that anchor the polymer tethers to the underlying substrate. As polymer brushes are often used in a solvent swollen ...

American Chemical Society (ACS)2024

Linear, Y- and Ψ-shaped poly(2-(dimethylamino)ethyl methacrylate) and poly(methyl methacrylate) brushes prepared by surface-initiated polymerization from a homologous series of ATRP initiators

Harm-Anton Klok, Sabrina Sant

A series of 3 homologous surface-anchored initiators for atom transfer radical polymerization has been used to graft linear, Y- and Ψ-shaped poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) and poly(methyl methacrylate) (PMMA) brushes from silicon surfa ...

Pergamon-Elsevier Science Ltd2024

Swelling-Activated, Soft Mechanochemistry in Polymer Materials

Harm-Anton Klok, Friederike Katharina Metze, Zhao Meng, Sabrina Sant, Kuljeet Kaur

Swelling in polymer materials is a ubiquitous phenomenon. At a molecular level, swelling is dictated by solvent-polymer interactions, and has been thoroughly studied both theoretically and experimentally. Favorable solvent-polymer interactions result in th ...

AMER CHEMICAL SOC2023

Architecturally Diverse Polymer Brushes Prepared via Surface-Initiated Atom Transfer Radical Polymerization

Sabrina Sant

Polymer brushes, which are polymers anchored to a solid substrate by one chainend, have the ability to modify the properties of an underlying substrate, offering intriguing features such as enhanced lubrication, reduced friction, colloidal stability, and a ...

EPFL2023