Content overview
Polymers are widely used in industries such as pharmaceuticals, coatings, packaging, cosmetics, and medical devices due to their tunable molecular structure and solution behavior.
Unlike small-molecule systems, polymer solubility is often governed not only by thermodynamics but also by dissolution and precipitation kinetics. Because of their large molecular size and structural complexity, polymer solutions may respond differently to temperature ramps depending on their equilibration rates. In turbidity-based analyses, this can lead to ramp-derived transmission data that either accurately represent equilibrium solubility or deviate due to kinetic limitations and thermal history effects. Therefore, validating transmission (%) data collected during temperature ramps is essential for generating meaningful solubility profiles.
This application note assess whether transmission (%) values obtained during temperature ramps can be reliably used to represent polymer solution behavior over a broad temperature range for systems exhibiting LCST and UCST behavior, using the Crystal16 to monitor percent transmission under controlled temperature programs,
Reference
We acknowledge the following published study, and we are deeply thankful to the authors for their valuable contributions polymer research utilizing the Crystal16 instrument.
Amrihesari, M., Murry, A. & Brettmann, B. Towards standardized polymer solubility measurements using a parallel crystallizer. Polymer 278, 125983 (2023).
