Work

Rheological Properties of Self-Assembled Monolayers Formed by Modified Oligo(ethylene oxide) Molecules using a Quartz Crystal Microbalance

Year: 2026

Type: article

Abstract: Investigating the relationship betw een molecular structure and the physical properties of self-assembled monolayers (SAMs) is essential for developing strategies to prevent nonspecific adsorption. In this study, we used a quartz crystal microbalance to examine this relationship from a rheological perspective, focusing on SAMs formed from oligo(ethylene oxide) molecules in which a single oxygen atom was substituted with either carbon or nitrogen. The results showed that replacing one oxygen atom with carbon increased the shear modulus of the SAMs, whereas substitution with nitrogen decreased it. In contrast, the shear viscosity remained unchanged regardless of the type of substitution.

Source: Journal of Oleo Science

DOI: 10.5650/jos.ess26011

Authors: Minoru Yoshimoto, Shigeru Kurosawa, Mutsuo Tanaka

Institutions: Kagoshima University, National Institute of Advanced Industrial Science and Technology, Saitama Institute of Technology

Language: English

Topic: Polymer Surface Interaction Studies

Subfield: Surfaces, Coatings and Films

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $301

Funder: Japan Society for the Promotion of Science