A5085396108- Material Dynamics and Properties
- Force Microscopy Techniques and Applications
- Hydrogels: synthesis, properties, applications
- Fluid Dynamics and Thin Films
- Block Copolymer Self-Assembly
- Liquid Crystal Research Advancements
- Polymer Nanocomposites and Properties
- Surface Roughness and Optical Measurements
- Analytical Chemistry and Sensors
Indian Institute of Technology Madras
2022-2025
Ellipsometry is a powerful and convenient technique that widely used to determine the thickness optical characteristics of polymer thin films. The determination accomplished by modeling measured change in polarization an electromagnetic wave upon interacting with film. However, due strong statistical correlations between fit parameters model, simultaneous refractive indices optically anisotropic ultrathin films using ellipsometry remains challenge. Here, we propose approach can be obtain...
A strongly adsorbed, tightly bound polymer layer can exist at the polymer/substrate interface in thin films and nanocomposites. The characteristics of have long been interest because its effect on physical properties. However, direct investigations are challenging as is buried deep within sample. common approach to access by rinsing or washing away loosely using a good solvent. While this enables layer, it unclear if remains unperturbed preparation process. Therefore, situ techniques that...
We report an interplay between the desorption of intrinsic water and relaxation polymer chains resulting in unusual thermomechanical response a hydrogel, wherein elastic modulus increases certain temperature range followed by sharp decrease with further increase temperature. establish that, disparate types having distinct binding energy affects consolidation behaviour matrix, which turn mechanical properties at different ranges. Using temperature-dependent dielectric spectroscopy...