| Autor: |
Race, James J., Heyam, Alex, Wiebe, Matthew A., Diego‐Garcia Hernandez, J., Ellis, Charlotte E., Lei, Shixing, Manners, Ian, Weller, Andrew S. |
| Předmět: |
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| Zdroj: |
Angewandte Chemie International Edition; 1/16/2023, Vol. 62 Issue 3, p1-7, 7p |
| Abstrakt: |
An amphiphilic block copolymer of polyphosphinoborane has been prepared by a mechanism‐led strategy of the sequential catalytic dehydropolymerization of precursor monomers, H3B ⋅ PRH2 (R=Ph, n‐hexyl), using the simple pre‐catalyst [Rh(Ph2PCH2CH2PPh2)2]Cl. Speciation, mechanism and polymer chain growth studies support a step‐growth process where reversible chain transfer occurs, i.e. H3B ⋅ PRH2/oligomer/polymer can all coordinate with, and be activated by, the catalyst. Block copolymer [H2BPPhH]110‐b‐[H2BP(n‐hexyl)H]11 can be synthesized and self‐assembles in solution to form either rod‐like micelles or vesicles depending on solvent polarity. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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