Shasha Liu, Yajing Gao, Wei Wang and Xiaoliang Wang
Chem. Commun., 2023,59, 599-602
DOI:
10.1039/D2CC05774C,
Communication
The water content of hydrophilic polymers is a fundamental property that regulates their performance. Herein, we report a new technique for optically imaging the water content of hydrophilic polymers both in static and dynamic evolution during swelling, based on mapping the interfacial refractive index of hydrophilic polymers with label-free total internal reflection microscopy.