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Statements

Subject Item
n2:RIV%2F61389013%3A_____%2F10%3A00339561%21RIV10-AV0-61389013
rdf:type
n9:Vysledek skos:Concept
dcterms:description
Mesogenic thiols with azobenzene as a rigid part and with various substituent (H-, methoxy-, butoxy- or octyloxy-) in para-position of azobenzene ring were synthesized by multi-step syntheses. The thiols were grafted onto double bonds of telechelic poly(butadiene)diol (M (n) similar to 2,400, functionality f (n) = 2, 60 mol.% of 1,2-butadiene units) via radical addition in the presence of 2,2'-azobis(2-methylpropionitrile) (AIBN). Initial mole ratio of thiol/double bonds varied in the range of 0.2-1.0. Influence of the azobenzene substituent on the extent of modification reaction was estimated using elemental analysis, size-exclusion chromatography and H-1 NMR spectroscopy. The substituent on mesogen plays also an important role in thermal behavior of both the thiols and the obtained comb-like polymers, as determined by differential scanning calorimetry and polarizing optical microscopy. Mesogenic thiols with azobenzene as a rigid part and with various substituent (H-, methoxy-, butoxy- or octyloxy-) in para-position of azobenzene ring were synthesized by multi-step syntheses. The thiols were grafted onto double bonds of telechelic poly(butadiene)diol (M (n) similar to 2,400, functionality f (n) = 2, 60 mol.% of 1,2-butadiene units) via radical addition in the presence of 2,2'-azobis(2-methylpropionitrile) (AIBN). Initial mole ratio of thiol/double bonds varied in the range of 0.2-1.0. Influence of the azobenzene substituent on the extent of modification reaction was estimated using elemental analysis, size-exclusion chromatography and H-1 NMR spectroscopy. The substituent on mesogen plays also an important role in thermal behavior of both the thiols and the obtained comb-like polymers, as determined by differential scanning calorimetry and polarizing optical microscopy.
dcterms:title
Synthesis and thermal behavior of telechelic poly(butadiene)diols with azobenzene-based liquid-crystalline units in side chains Synthesis and thermal behavior of telechelic poly(butadiene)diols with azobenzene-based liquid-crystalline units in side chains
skos:prefLabel
Synthesis and thermal behavior of telechelic poly(butadiene)diols with azobenzene-based liquid-crystalline units in side chains Synthesis and thermal behavior of telechelic poly(butadiene)diols with azobenzene-based liquid-crystalline units in side chains
skos:notation
RIV/61389013:_____/10:00339561!RIV10-AV0-61389013
n3:aktivita
n7:P n7:Z
n3:aktivity
P(GA202/09/2078), Z(AV0Z40500505)
n3:cisloPeriodika
4
n3:dodaniDat
n11:2010
n3:domaciTvurceVysledku
n4:9811729 n4:6965644 n4:5617502
n3:druhVysledku
n5:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
291497
n3:idVysledku
RIV/61389013:_____/10:00339561
n3:jazykVysledku
n12:eng
n3:klicovaSlova
azobenzene mesogens; radical addition; poly(butadiene)diols
n3:klicoveSlovo
n8:azobenzene%20mesogens n8:radical%20addition n8:poly%28butadiene%29diols
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[470435CDE06E]
n3:nazevZdroje
Polymer Bulletin
n3:obor
n13:CD
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n16:GA202%2F09%2F2078
n3:rokUplatneniVysledku
n11:2010
n3:svazekPeriodika
64
n3:tvurceVysledku
Látalová, Petra Sedláková, Zdeňka Poláková, Lenka
n3:wos
000274099400001
n3:zamer
n15:AV0Z40500505
s:issn
0170-0839
s:numberOfPages
12