Controlling Nucleation in Quasi-Two-Dimensional Langmuir Poly(L-lactide) Films through Variation of the Rate of Compression
- We studied morphological changes in a quasi-two-dimensional Langmuir film of low molar mass poly(L-lactide) upon increasing the surface density, starting from randomly distributed molecules to a homogeneous monolayer of closely packed molecules, followed by nucleation and growth of mesoscopic, three-dimensional clusters from an overcompressed monolayer. The corresponding nucleation density of mesoscopic clusters within the monolayer can be tailored through variation of the rate of compression. For a given surface density and temperature, the nucleation probability was found to increase linearly with the rate of compression, allowing to adjust the density of mesoscopic clusters over nearly 2 orders magnitude.
| Author details: | Abhijna Das, Ahmed S. El-Tawargy, Emna Khechine, Sebastian NoackORCiDGND, Helmut SchlaadORCiDGND, Günter ReiterORCiD, Renate ReiterORCiD |
|---|---|
| DOI: | https://doi.org/10.1021/acs.langmuir.9b00619 |
| ISSN: | 0743-7463 |
| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/30998851 |
| Title of parent work (English): | Langmuir |
| Publisher: | American Chemical Society |
| Place of publishing: | Washington |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2019/05/07 |
| Publication year: | 2019 |
| Release date: | 2021/02/11 |
| Volume: | 35 |
| Issue: | 18 |
| Number of pages: | 8 |
| First page: | 6129 |
| Last Page: | 6136 |
| Funding institution: | International research and training group Soft Matter Science [IRTG-1642] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
| Peer review: | Referiert |
