Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Jan Przedmojski"'
Autor:
Bertrand Donnio, Daniel Guillon, Jan Przedmojski, Roman Dąbrowski, Katarzyna Skrzypek, Wiktor Piecek, Marzena Tykarska
Publikováno v:
Liquid Crystals. 35:1053-1059
Two ferroelectric three‐ring chiral esters, one with a partially fluorinated alkyl chain and another with a cyano terminal group, were mixed with a structurally similar compound having an alkyl terminal chain. In their mixtures an antiferroelectric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9be814713f4dfc6388e5de11576b946f
https://doi.org/10.1080/02678290802364004
https://doi.org/10.1080/02678290802364004
Publikováno v:
Liquid Crystals. 35:401-406
A series of 4‐decyloxy‐4′‐hydroxybiphenyl esters of α,ω‐alkanedicarboxylic acids containing two mesogenic units connected by a methylene spacer was synthesized. The mesogenic properties of the compounds were investigated by polarising opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5294233ddee219afa83879a37035a8fe
https://doi.org/10.1080/02678290801906052
https://doi.org/10.1080/02678290801906052
Publikováno v:
Molecular Crystals and Liquid Crystals. 475:137-149
Three ring chiral esters, substituted laterally or not with a fluorine atom, having chiral terminal chain of the structure –COOC*H(CH3)C6H13, and achiral terminal chain alkylated CnH2n+1COO(CH2)mO– or partially fluorinated CnF2n+1COO(CH2)mO– (n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcf4c2ff8fc7982bfdec62ff1dd12311
https://doi.org/10.1080/15421400701683865
https://doi.org/10.1080/15421400701683865
Publikováno v:
Molecular Crystals and Liquid Crystals. 477:87-100
Several substances of different chemical structures exhibiting the smectic B polymorphism in a wide temperature range [accompanied by the nematic (N) phase in few cases] were studied with the aid of the dielectric relaxation and X-ray methods. The di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f164430b04f1acdb70d0542eb16047c
https://doi.org/10.1080/15421400701732340
https://doi.org/10.1080/15421400701732340
Publikováno v:
Molecular Crystals and Liquid Crystals. 477:185-193
Two fluorinated compounds: 3-(2-fluoroctyloxy)-6-(4octyl-phenyl) pyridine (FOOPP) and 3-(fluornonyl)-6-(4-heptyloxy-phenyl)pyridine (FNHPP), synthesized by E. Merck Company in earlier 1990s, which show a pronounced increase of spontaneous polarizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::409cc28cc93831b83600895ae1ac32e3
https://doi.org/10.1080/15421400701683345
https://doi.org/10.1080/15421400701683345
Publikováno v:
Molecular Crystals and Liquid Crystals. 465:109-119
DSC, polarizing optical microscopy and X-ray diffractometry were used to investigate the mesomorphic behaviour of 4-n-butyl-4′-acetyl-biphenyl, which resulted to exhibit a smectic E and, possibly, a smectic K phase. Additionally, 2H NMR spectroscop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bc758fce86f733b905d9e50e5642070
https://doi.org/10.1080/15421400701205636
https://doi.org/10.1080/15421400701205636
Publikováno v:
Phase Transitions. 80:253-272
This article reports new results on mesomorphic properties of 1,3-phenylene bis{4-[(4-heptyloxybenzoyl)sulfanyl]benzoate}, from the homologous series of banana-shaped resorcinol-based thioesters, referred to as 7OSOR, synthesized by us. The 7OSOR com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffcdaeed60729fb27e0151c05f41a810
https://doi.org/10.1080/01411590701230139
https://doi.org/10.1080/01411590701230139
Publikováno v:
Ferroelectrics. 343:61-67
Two and three ring achiral esters being the derivatives of benzoic or biphenylcarboxylic acid were prepared. Their phase transition temperatures, enthalpies and smectic layer spacing were investigated. The compounds have extremely high clearing tempe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c85ae8ca9d61b5534bcf9d74f089b21a
https://doi.org/10.1080/00150190600962093
https://doi.org/10.1080/00150190600962093
Autor:
Ewa Majewska, Jan Przedmojski, Ewa BiaŁecka‐Florjańczyk, Ewa Gorecka, Dorota Melon-Ksyta, Irma Śledzińska
Publikováno v:
Liquid Crystals. 33:1143-1151
Several new ester imide derivatives with different N‐substituents in the imide ring were synthesized and their mesogenic properties investigated by thermal analysis, optical microscopy and X‐ray diffraction. All the esters of N‐4‐[(4′‐dec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::486badbfbd47e1822611fcb8c0cd1500
https://doi.org/10.1080/02678290600973089
https://doi.org/10.1080/02678290600973089
Publikováno v:
European Polymer Journal. 42:1662-1669
The series of cyclic oligosiloxanes having different attached mesogenic rigid cores and the polar end groups have been reported. The novel oligomers exhibit smectic A and E phases. The effects of the various central linking units and end terminal gro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f135ab1e34b518745139b6515a493d1c
https://doi.org/10.1016/j.eurpolymj.2006.01.023
https://doi.org/10.1016/j.eurpolymj.2006.01.023