Abstract
Photoactive allyl ammonium salt (BPEA) containing benzophenone moiety in the structure was synthesized and characterized. Its capability to act as a self-initiating addition fragmentation agent in the photoinitiated cationic polymerization of oxiranes such as cyclohexene oxide and vinyl monomers such as butylvinyl ether was investigated. These monomers turned out to be polymerizable in the presence of BPEA provided free radicals are generated photochemically at λ > 300 nm by hydrogen abstraction of excited benzophenone moiety. Accordingly, a free radical adds to the carbon-carbon double bond of a ground state BPEA and fragmentation of the adduct radical results in the formation of reactive ammonium radical cation which is essentially responsible for the initiation.
| Original language | English |
|---|---|
| Pages (from-to) | 1845-1850 |
| Number of pages | 6 |
| Journal | European Polymer Journal |
| Volume | 38 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sept 2002 |
Funding
The authors would like to thank Istanbul Technical University Research Fund for the financial support. Prof. Niyazi Bicak is gratefully acknowledged for his valuable comments on GC-MS analyses.
| Funders | Funder number |
|---|---|
| Istanbul Technical University Research Fund |
Keywords
- Addition fragmentation reactions
- Benzophenone
- Photoinitiated cationic polymerization