| Autor: |
Fomina, Lioudmila, Fomine, Serguei, Peña, Patricia Ponce, Ogawa, Takeshi, Alexandrova, Larissa, Gaviño, Ruben |
| Zdroj: |
Macromolecular Chemistry and Physics; January 1999, Vol. 200 Issue: 1 p239-245, 7p |
| Abstrakt: |
Three novel aromatic naphthalene-lactamimide monomers were synthesised and polymerised via high temperature transesterification in melt to produce fully aromatic lactamimide-containing polyesters. Molecular modelling of the synthesised polymers showed that they should possess better solubility compared to the respective polyimides due to the more flexible polymer chain. Some of the synthesised polymers are soluble in chloroform and show medium molecular weight. Polymers were found to be rather thermostable exhibiting T10 up to 510°C. Aromatic polylactamimides did not show strong photoemission, probably due to Loose-Bolt quenching, however, the third order non-linear optical susceptibilities of the polymers were up to 9.1×1011 esu, which is 5 times that of polylactamimides bearing aliphatic substituents and comparable with those of polydiacetylenes, polyanilines and polythiophenes known for their non-linear optical properties. |
| Databáze: |
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