Thiol–ene polymerization of oligospiroketal rods

文献情報

出版日 2017-10-18

DOI 10.1039/C7PY01569K

インパクトファクター 5.582

著者

Pablo Wessig, Tanja Schulze, Alexandra Pfennig, Steffen M. Weidner, Sascha Prentzel, Helmut Schlaad

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要旨

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.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Thiol–ene polymerization of oligospiroketal rods

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