4.7 Article

Synthesis of γ-cyclodextrin substituted bis(acyl)phosphane oxide derivative (BAPO-γ-CyD) serving as multiple photoinitiator and crosslinking agent

Journal

CHEMICAL COMMUNICATIONS
Volume 56, Issue 35, Pages 4828-4831

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc01732a

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A new multi-photoactive gamma-cyclodextrin substituted bis(acyl)phosphane oxide derivative (BAPO-gamma-CyD) was successfully preparedviaa convergent synthesis using a phospha-Michael-addition, as confirmed by(1)H-,C-13-,P-31-NMR and IR spectroscopy and mass spectrometry. Kinetic studies carried out by photo-DSC and photo-rheology demonstrated its outstanding efficiency as a photoinitiator for free-radical polymerization. Remarkably, it is found that BAPO-gamma-CyD also acts as a crosslinking agent to convert monofunctional methacrylate monomers into self-standing thermosetting networks with extensive swelling capability in water.

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