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Influence of the Polymer Microstructure over the Phase Separation of Thermo-Responsive Nanoparticles by Manfredini, Nicolò (author);Tomasoni, Marco (author);Sponchioni, Mattia (author);Moscatelli, Davide (author) is a Materials Science article available to read on EtoBox.

What is Influence of the Polymer Microstructure over the Phase Separation of Thermo-Responsive Nanoparticles about?

Thermo-responsive nanoparticles (NPs), i.e., colloids with a sharp and often reversible phase separation in response to thermal stimuli, are coming to the forefront due to their dynamic behavior, useful in applications ranging from biomedicine to advanced separations and smart optics. What is guiding the macroscopic behavior of these systems above their critical temperature is mainly the microstructure of the polymer chains of which these NPs are comprised. Therefore, a comprehensive understanding of the influence of the polymer properties over the thermal response is highly required to reproducibly target a specific behavior. In this study, we synthesized thermo-responsive NPs with different size, polymeric microstructure and hydrophilic-lipophilic balance (HLB) and investigated the role of these properties over their phase separation. We first synthesized four different thermo-responsive oligomers via Reversible Addition-Fragmentation Chain Transfer (RAFT) Polymerization of poly(ethylene glycol)methyl ether methacrylate. Then, exploiting the RAFT living character, we chain-extended these oligomers with butyl methacrylate obtaining a library of NPs. Finally, we investigated the NP

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Author

Manfredini, Nicolò (author);Tomasoni, Marco (author);Sponchioni, Mattia (author);Moscatelli, Davide (author)

Publisher

MDPI AG

Published

2021

Language

EN

Field

Materials Science (Physical Sciences)