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Temperature-Dependent Nanostructure of an End-Tethered Octadecane Brush in Tetradecane and Nanoparticle Phase Behavior

Published

Author(s)

A.P.R. Eberle, Norman J. Wagner, Bulent Akgun, Sushil K. Satija

Abstract

The phase behavior of a molecular brush-C18 grafted to the surface of both a silicon wafer and SiO2 nanoparticles was investigated as a function of temperature using neutron reflectometry (NR), and small-angle neutron scattering (SANS), respectively. The experiments demonstrate a phase change in the brush layer characterized by a straightening of the molecular configuration, increase in shell thickness, and increase in solvent concentration with decreasing temperature that corresponds to gelation in the nanoparticle dispersion.
Citation
Langmuir
Volume
26
Issue
5

Keywords

Phase behavior, octadecane brushes, neutron reflectivity, SANS, grafted nanoparticles, gelation

Citation

Eberle, A. , Wagner, N. , Akgun, B. and Satija, S. (2010), Temperature-Dependent Nanostructure of an End-Tethered Octadecane Brush in Tetradecane and Nanoparticle Phase Behavior, Langmuir, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904808 (Accessed July 14, 2024)

Issues

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Created January 27, 2010, Updated October 12, 2021