Photochemical and photopolymerization study of 2,6-dihalogen derivatives of p-nitroaniline in the presence of N,N-dimethylaniline as a bimolecular photoinitiator system
| dc.contributor.author | Costela, A | |
| dc.contributor.author | GarciaMoreno, I | |
| dc.contributor.author | Diaz, F | |
| dc.contributor.author | Dabrio, J | |
| dc.contributor.author | Sastre, R | |
| dc.date.accessioned | 2025-01-21T01:33:06Z | |
| dc.date.available | 2025-01-21T01:33:06Z | |
| dc.date.issued | 1997 | |
| dc.description.abstract | Steady-state photolysis at 365 nm has been employed to carry out a structure-reactivity investigation of the 2,6-dihalogen derivatives of p-nitroaniline (pNA). Detailed studies of the spectroscopy of these molecules were accomplished. Photoreduction behavior of the 2,6-dihalogen derivatives of p-nitroaniline in the presence of N,N-dimethylaniline (DMA) has been analyzed. The efficiency of these compounds as photoinitiators was studied by following the polymerization kinetics of the lauryl acrylate (LA) monomer by differential scanning photo-calorimetry (Photo-DSC) under aerobic and anaerobic conditions. Using size exclusion chromatography (SEC) analysis of the polymers their number-average molecular weights, the number-average degree of polymerization, and the length of the kinetic chain were determined and information on the nature of the end-chain groups and the chain-transfer behavior of these photoinitiators systems were obtained. The polymerization activity of the 2,6-dihalogen derivatives of pNA proved to be higher than those obtained with conventional aromatic ketone photoinitiators. | |
| dc.fuente.origen | WOS | |
| dc.identifier.issn | 0323-7648 | |
| dc.identifier.uri | https://repositorio.uc.cl/handle/11534/97372 | |
| dc.identifier.wosid | WOS:A1997YD28700002 | |
| dc.issue.numero | 10 | |
| dc.language.iso | en | |
| dc.pagina.final | 431 | |
| dc.pagina.inicio | 423 | |
| dc.revista | Acta polymerica | |
| dc.rights | acceso restringido | |
| dc.title | Photochemical and photopolymerization study of 2,6-dihalogen derivatives of p-nitroaniline in the presence of N,N-dimethylaniline as a bimolecular photoinitiator system | |
| dc.type | artículo | |
| dc.volumen | 48 | |
| sipa.index | WOS | |
| sipa.trazabilidad | WOS;2025-01-12 |