Degradable Polyphosphoramidate via Ring-Opening Metathesis Polymerization

Yifei  Liang; Hao  Sun; Wei  Cao; Matthew P.  Thompson; Nathan C.  Gianneschi

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Degradable Polyphosphoramidate via Ring-Opening Metathesis Polymerization

机译：通过开环复分解聚合可降解多磷酸酯

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We report the synthesis of a degradable polyphosphoramidate via ring-opening metathesis polymerization (ROMP) with the Grubbs initiator (IMesH_(2))(C_(5)H_(5)N)_(2)(Cl)_(2)Ru═CHPh. Controlled ROMP of a low ring strain diazaphosphepine-based cyclic olefin was achieved at low temperatures to afford well-defined polymers that readily undergo degradation in acidic conditions via the cleavage of the acid-labile phosphoramidate linkages. The diazaphosphepine monomer was compatible in random and block copolymerizations with phenyl and oligo(ethylene glycol) bearing norbornenes. This approach introduced partial or complete degradability into the polymer backbones. With this chemistry, we accessed amphiphilic poly(diazaphosphepine-norbornene) copolymers that could be used to prepare micellar nanoparticles.

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《ACS Macro Letters》 |2020年第10期|共6页
作者
Yifei Liang; Hao Sun; Wei Cao; Matthew P. Thompson; Nathan C. Gianneschi;
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作者单位

Department of Chemistry International Institute for Nanotechnology Simpson-Querrey Institute Chemistry of Life Processes Institute Lurie Cancer Center Northwestern University;

Department of Chemistry International Institute for Nanotechnology Simpson-Querrey Institute Chemistry of Life Processes Institute Lurie Cancer Center Northwestern University;

Department of Chemistry International Institute for Nanotechnology Simpson-Querrey Institute Chemistry of Life Processes Institute Lurie Cancer Center Northwestern University;

Department of Chemistry International Institute for Nanotechnology Simpson-Querrey Institute Chemistry of Life Processes Institute Lurie Cancer Center Northwestern University;

Department of Chemistry International Institute for Nanotechnology Simpson-Querrey Institute Chemistry of Life Processes Institute Lurie Cancer Center Northwestern University;

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正文语种 eng
中图分类有机化学;
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Degradable Polyphosphoramidate via Ring-Opening Metathesis Polymerization

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