We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Phenacyl Bromide as a Single‐Component Photoinitiator: Photoinduced Step‐Growth Polymerization of N‐Methylpyrrole and N‐Methylindole.
- Authors
Kocaarslan, Azra; Kaya, Kerem; Jockusch, Steffen; Yagci, Yusuf
- Abstract
The synthesis of step‐growth polymers by photoinduced methods is a challenging issue in synthetic chemistry. Here, we report a single component near UV responsive photopolymerization system for step‐growth polymerization of N‐methylpyrrole (MPyr) and N‐methylindole (MIn) by using phenacyl bromide (PAB). The obtained high molecular weight conjugated polymers were characterized by spectral and chromatographic methods. Detailed laser flash photolysis and spectroscopic studies revealed that polymerization proceeds by successive photoinduced cleavage of PAB followed by electron transfer, proton release and coupling processes. After photolysis, chain growth continues also in daylight or dark by acidic oxidation. The structural features of the polymers were investigated. PAB single component photoinitiator enables an efficient, rapid, room temperature step‐growth polymerization process of MPyr and MIn that can be applied to other conjugated monomers.
- Subjects
POLYCONDENSATION; FLASH photolysis; POLYMERIZATION; PHOTOINDUCED electron transfer; BROMIDES; CHARGE exchange; MOLECULAR weights
- Publication
Angewandte Chemie, 2022, Vol 134, Issue 36, p1
- ISSN
0044-8249
- Publication type
Academic Journal
- DOI
10.1002/ange.202208845