Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Lyudmila Mladenova"'
Publikováno v:
Macromolecular Chemistry and Physics. 197:1713-1720
In order to elucidate the dependence of electrical conductivity on conjugation length, polyketones built up of short conjugated aromatic blocks and methylene chains of different length were studied. As obtained, the polymer exhibit very low electrica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc466d73127d862293541530bba8e2c7
https://doi.org/10.1002/macp.1996.021970512
https://doi.org/10.1002/macp.1996.021970512
Autor:
Ivan Schopov, Lyudmila Mladenova
Publikováno v:
Synthetic Metals. 48:249-258
Two new polymers with methylene bridged rans-cisoid polyene chains are prepared by the carbonyl-olefin exchange reaction. Since the single bonds of the chain are included in the rings, any free rotation along them is prevented and therefore the conju
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc77277265f732c1720aa9d417cc1952
https://doi.org/10.1016/0379-6779(92)90228-b
https://doi.org/10.1016/0379-6779(92)90228-b
Autor:
Lyudmila Mladenova, Ivan Schopov
Publikováno v:
Die Makromolekulare Chemie. 190:1483-1488
In order to prove that the carbonyl-olefin exchange reaction (COER) is a step reaction, a shorttime experiment was carried out, from which only linear oligomers were obtained. The dimer was identified by comparison with an authentic sample. The polym
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9235eaef114c10268cafe38ab673c2f
https://doi.org/10.1002/macp.1989.021900628
https://doi.org/10.1002/macp.1989.021900628
Publikováno v:
Die Makromolekulare Chemie. 189:1787-1792
The reaction conditions influencing the carbonyl-olefin exchange reaction were studied. It could be established that highest yields and molecular weights are obtained for a mole ratio catalyst/monomer of 1 : 1, the former being introduced in several
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57d42f105ecc660508b79dc48acfbb03
https://doi.org/10.1002/macp.1988.021890804
https://doi.org/10.1002/macp.1988.021890804
Autor:
Ivan Schopov, Lyudmila Mladenova
Publikováno v:
Die Makromolekulare Chemie, Rapid Communications. 6:659-663
Preparation a partir de benzylidene acetophenone en presence d'hexachlorure de tungstene, a l'etat fondu ou en solution dans le benzene ou le trichloro-1,3,5 benzene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7e1c17d98aa37d79a7b6b09d937e4f3
https://doi.org/10.1002/marc.1985.030061005
https://doi.org/10.1002/marc.1985.030061005