Synthesis of Degradable Mainchain Semifluorinated Polyester by CuAAC with Reaction‐Enhanced Reactivity of Intermediate (RERI) Mechanism DOI

Jiasheng Wu,

Zheqi Li,

Zhuo Zhou

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Quantitative insertion of functionality into polymer chains via step-growth polymerization is challenging due to the random bimolecular reaction and relatively low extent reaction. Herein, a copper-catalyzed azide-alkyne cycloaddition (CuAAC) with reaction-enhanced reactivity intermediates (RERI) mechanism applied for precise degradable functions mainchain semifluorinated endowed it controlled degradability. In this CuAAC polymerization, bis-alkynyl-terminated (A2) monomer can be quantitatively consumed when slightly excess 2,2-bis(azidomethyl)propane-1,3-diyl bis(2-methylpropanoate) (BiAz, B2) RERI effect employed. The copolymerization o-nitrobenzyl ester-derived A2 (A2-ONB), fluorinated (A2-F), B2 monomers produced copolymers tunable chemical composition high molecular weight, along quantitative [A2-ONB] units. These are capable degradation profile under ultraviolet radiation undergo complete basic condition. This work provided simple approach preparing polymers

Language: Английский

Synthesis of Degradable Mainchain Semifluorinated Polyester by CuAAC with Reaction‐Enhanced Reactivity of Intermediate (RERI) Mechanism DOI

Jiasheng Wu,

Zheqi Li,

Zhuo Zhou

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Quantitative insertion of functionality into polymer chains via step-growth polymerization is challenging due to the random bimolecular reaction and relatively low extent reaction. Herein, a copper-catalyzed azide-alkyne cycloaddition (CuAAC) with reaction-enhanced reactivity intermediates (RERI) mechanism applied for precise degradable functions mainchain semifluorinated endowed it controlled degradability. In this CuAAC polymerization, bis-alkynyl-terminated (A2) monomer can be quantitatively consumed when slightly excess 2,2-bis(azidomethyl)propane-1,3-diyl bis(2-methylpropanoate) (BiAz, B2) RERI effect employed. The copolymerization o-nitrobenzyl ester-derived A2 (A2-ONB), fluorinated (A2-F), B2 monomers produced copolymers tunable chemical composition high molecular weight, along quantitative [A2-ONB] units. These are capable degradation profile under ultraviolet radiation undergo complete basic condition. This work provided simple approach preparing polymers

Language: Английский

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