Relaxation behavior of polymer thin films: Effects of free surface, buried interface, and geometrical confinement

B Li, S Zhang, JS Andre, Z Chen - Progress in Polymer Science, 2021 - Elsevier
The glass transition temperature (T g) of polymer thin films, one of the most important
parameters to characterize the relaxation behavior of polymer chains in a thin film, has been …

[HTML][HTML] Sum frequency generation (SFG) spectroscopy at surfaces and interfaces: Adsorbate structure and molecular bond orientation

X Li, G Rupprechter - Surface Science Reports, 2024 - Elsevier
Abstract Infrared (IR)-visible (Vis) sum frequency generation (SFG) is a second-order
nonlinear optical process which is forbidden in centrosymmetric bulk media or isotropic …

In Situ Observation of Chemical Reactions at Buried Solid/Solid Interfaces in Coextruded Multilayer Polymer Films

D Rossi, Y Wu, R Paradkar, Y Dong… - Industrial & …, 2023 - ACS Publications
The characterization of chemical reactions at the buried interface is critical to understand
interfacial molecular interactions and improve interfacial properties like adhesion. Interface …

Molecular behavior of 1K polyurethane adhesive at buried interfaces: Plasma treatment, annealing, and adhesion

Y Wu, T Wang, J Gao, L Zhang, JDB Fay, S Hirth… - Langmuir, 2023 - ACS Publications
One-part (1K) polyurethane (PU) adhesive has excellent bulk strength and environmental
resistance. It is therefore widely used in many fields, such as construction, transportation …

Molecular interactions between amino silane adhesion promoter and acrylic polymer adhesive at buried silica interfaces

JS Andre, J Grant, E Greyson, X Chen, C Tucker… - Langmuir, 2022 - ACS Publications
In this study, the influence of an amino silane (3-(2-aminoethylamino)-
propyldimethoxymethylsilane, AEAPS) on the interfacial structure and adhesion of butyl …

Spectroscopically Detecting Molecular-Level Bonding Formation between an Epoxy Formula and Steel

Z Xu, Y Zhang, Y Wu, X Lu - Langmuir, 2022 - ACS Publications
The formation of the interfacial adhesion between an epoxy adhesive and a substrate was
normally accompanied by the epoxy curing process on the substrate. Although the debate …

Observing a chemical reaction at a buried solid/solid interface in situ

B Li, JS Andre, X Chen, B Walther, R Paradkar… - Analytical …, 2020 - ACS Publications
Chemical reactions are the most important phenomena in chemistry. However, chemical
reactions at buried solid/solid interfaces are very difficult to study in situ. In this research, the …

Study on the chemical bonding at the interface between epoxy primer and polyurethane topcoat

J Liu, K Chen, Y Zhang, L Zhou, F Wang… - Progress in Organic …, 2024 - Elsevier
This study investigates the interlayer bonding mechanism between epoxy primers and
polyurethane topcoats commonly used in marine coatings. Previous studies have focused …

Interfacial reaction of a maleic anhydride grafted polyolefin with ethylene vinyl alcohol copolymer at the buried solid/solid interface

JS Andre, B Li, X Chen, R Paradkar, B Walther, C Feng… - Polymer, 2021 - Elsevier
In this research, sum frequency generation (SFG) vibrational spectroscopy, a surface and
interface specific technique, was used to study chemical interactions occurring at the buried …

Silane Effects on Adhesion Enhancement of 2K Polyurethane Adhesives

Y Wu, T Wang, JDB Fay, L Zhang, S Hirth, J Hankett… - Langmuir, 2023 - ACS Publications
With excellent properties such as great flexibility, outstanding chemical resistance, and
superb mechanical strength, two-part polyurethane (2K PU) adhesives have been widely …