Thiol-ene polymerization of oligospiroketal rods
- The nucleophilic thiol-ene (thia-Michael) reaction between molecular rods bearing terminal thiols and bis-maleimides was investigated. The molecular rods have oligospiroketal (OSK) and oligospirothioketal (OSTK) backbones. Contrary to the expectations, cyclic oligomers were always obtained instead of linear rigid-rod polymers. Replacing the OS(T)K rods with a flexible chain yielded polymeric products, suggesting that the OS(T) K structure is responsible for the formation of cyclic products. The reason for the preferred formation of cyclic products is due to the presence of folded conformations, which have already been described for articulated rods.
| Author details: | Pablo WessigORCiDGND, Tanja Schulze, Alexandra Pfennig, Steffen M. Weidner, Sascha Prentzel, Helmut SchlaadORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1039/c7py01569k |
| ISSN: | 1759-9954 |
| ISSN: | 1759-9962 |
| Title of parent work (English): | Polymer Chemistry |
| Publisher: | Royal Society of Chemistry |
| Place of publishing: | Cambridge |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2017 |
| Publication year: | 2017 |
| Release date: | 2020/04/20 |
| Volume: | 8 |
| Number of pages: | 7 |
| First page: | 6879 |
| Last Page: | 6885 |
| Funding institution: | University of Potsdam |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
| Peer review: | Referiert |
