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N ‐Acyl Dibenzazepine Chemistry as Versatile Approach for Photoreversible Thiol‐Ene Networks
Author(s) -
Bener Semira,
Aydogan Cansu,
Yagci Yusuf
Publication year - 2020
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202000369
Subject(s) - thiol , ene reaction , chemistry , cleavage (geology) , photochemistry , polymer chemistry , organic chemistry , materials science , fracture (geology) , composite material
It 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.