N‐Acyl Dibenzazepine Chemistry as Versatile Approach for Photoreversible Thiol‐Ene Networks

Abstract

AbstractIt is herein reported that a facile application of N‐acyl dibenzazepine (ADBA) photochemistry for preparing photoreversible ADBA based thiol‐ene networks. Crosslinking of the ADBA thiol‐ene networks is successfully achieved by UV induced dimerization of ADBA groups at wavelengths above 300 nm while a subsequent deep UV exposure (λ = 250 nm) results in a well‐defined cleavage of the crosslinks. The photochemical bonding and cleavage of the process has been determined and studied in detail by spectroscopic measurements.