| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 72817 | Microporous and Mesoporous Materials | 2015 | 4 Pages |
•Sample cell concept for multimethod experiments on drying and film formation.•Combination of profile NMR and gravimetric results from parallel experiments.•Identification of critical water content with strong slowdown of particle rotation as early step of film formation.
Understanding the microscopic mechanisms of film formation in polymer dispersions is a complex analytical and physical challenge. In this contribution, we present results from parallel gravimetric and NMR profiling experiments along with a semiempiric model approach to establish a systematic relation between both data sets. As a result of the semiempiric model, a critical water content at which rotation dynamics of the polymer particles changes can be determined. Furthermore, it is shown that the addition of film-forming agents to the dispersion shifts the critical water content to higher values.
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