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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F10%3A10062572%21RIV11-GA0-11310___
rdf:type
skos:Concept n20:Vysledek
dcterms:description
Series of fluorine-containing ring-substituted phenylacetylenes have been polymerized with various Rh based catalysts. In polymerization systems yielding the soluble products we achieved the MW control by a proper selection of Rh-catalyst composition. All the prepared soluble polymers were of high microstructure uniformity with high cis double bonds content. Selected samples were submitted to the long-term MW and configurational stability tests. Polymers dissolved in THF and exposed to the atmosphere at diffused day light had undergone simultaneously proceeding cis-to-trans isomerisation and degradation. The stability of polymers was positively affected by the bulkiness of substituent on the Ph-ring and by the presence of substituent in the vicinity of the polymer main chain. The detailed study of ageing process involving the analyses of deeply aged polymer samples revealed the non-random character of degradation and mutual interconnection of degradation and cis-to-trans isomerisation processes. Series of fluorine-containing ring-substituted phenylacetylenes have been polymerized with various Rh based catalysts. In polymerization systems yielding the soluble products we achieved the MW control by a proper selection of Rh-catalyst composition. All the prepared soluble polymers were of high microstructure uniformity with high cis double bonds content. Selected samples were submitted to the long-term MW and configurational stability tests. Polymers dissolved in THF and exposed to the atmosphere at diffused day light had undergone simultaneously proceeding cis-to-trans isomerisation and degradation. The stability of polymers was positively affected by the bulkiness of substituent on the Ph-ring and by the presence of substituent in the vicinity of the polymer main chain. The detailed study of ageing process involving the analyses of deeply aged polymer samples revealed the non-random character of degradation and mutual interconnection of degradation and cis-to-trans isomerisation processes.
dcterms:title
Ring-substituted polyphenylacetylenes prepared with insertion catalysts: preparation, characterization, study of molecular weight and configurational stability Ring-substituted polyphenylacetylenes prepared with insertion catalysts: preparation, characterization, study of molecular weight and configurational stability
skos:prefLabel
Ring-substituted polyphenylacetylenes prepared with insertion catalysts: preparation, characterization, study of molecular weight and configurational stability Ring-substituted polyphenylacetylenes prepared with insertion catalysts: preparation, characterization, study of molecular weight and configurational stability
skos:notation
RIV/00216208:11310/10:10062572!RIV11-GA0-11310___
n3:aktivita
n4:S n4:P n4:Z
n3:aktivity
P(GA203/09/0803), P(GD203/08/H032), S, Z(MSM0021620857)
n3:dodaniDat
n8:2011
n3:domaciTvurceVysledku
n5:5303583 n5:4102274 n5:5069173 n5:9635939
n3:druhVysledku
n10:D
n3:duvernostUdaju
n22:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
285338
n3:idVysledku
RIV/00216208:11310/10:10062572
n3:jazykVysledku
n12:eng
n3:klicovaSlova
catalysts; SEC; isomerisation; degradation; Polyacetylenes
n3:klicoveSlovo
n6:isomerisation n6:Polyacetylenes n6:SEC n6:catalysts n6:degradation
n3:kontrolniKodProRIV
[83962F612916]
n3:mistoKonaniAkce
Kraków, Poland
n3:mistoVydani
Kraków, Poland
n3:nazevZdroje
10th Pannonian Symposium on Catalysis
n3:obor
n21:CD
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n16:GD203%2F08%2FH032 n16:GA203%2F09%2F0803
n3:rokUplatneniVysledku
n8:2010
n3:tvurceVysledku
Zedník, Jiří Vohlídal, Jiří Sedláček, Jan Trhlíková, Olga
n3:typAkce
n13:EUR
n3:zahajeniAkce
2010-08-29+02:00
n3:zamer
n9:MSM0021620857
s:numberOfPages
8
n14:hasPublisher
Polish Zeolite Association and Institute of Catalysis and Surface Chemistry
n7:isbn
978-83-929430-4-4
n15:organizacniJednotka
11310