About: The Effect of (2-hydroxypropyl)-betacyclodextrin on Rheology of Hydorphobically end-capped Poly(ethylene glycol) Aueous Solutions     Goto   Sponge   NotDistinct   Permalink

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Description
  • 2-Hydroxypropyl)-beta-cyclodextrin (HPBCD), a modified cyclic oligosaccharide, changes the flow behavior of aqueous solutions of a model telechelic associative polymer, hydrophobically end-capped poly(ethylene glycol) (ODU-12), because the inclusion complexation of HPBCD and octadecyl end-capping groups interferes with aggregation of the polymer end groups. The HPBCD-induced decrease in the high-frequency modulus can be well described assuming a 1:1 binding isotherm, but cannot fully explain the decrease in the low shear rate Newtonian viscosity, because HPBCD also strongly decreases the relaxation time. Consequently, besides decreasing low shear rate Newtonian viscosity, HPBCD also extends the Newtonian behavior to higher shear rates as predicted by the free-path version of the transient network theory [Marrucci et al., Macromolecules 26, 6483-6488 (1993)]. (C) 2004 The Society of Rheology.
  • 2-Hydroxypropyl)-beta-cyclodextrin (HPBCD), a modified cyclic oligosaccharide, changes the flow behavior of aqueous solutions of a model telechelic associative polymer, hydrophobically end-capped poly(ethylene glycol) (ODU-12), because the inclusion complexation of HPBCD and octadecyl end-capping groups interferes with aggregation of the polymer end groups. The HPBCD-induced decrease in the high-frequency modulus can be well described assuming a 1:1 binding isotherm, but cannot fully explain the decrease in the low shear rate Newtonian viscosity, because HPBCD also strongly decreases the relaxation time. Consequently, besides decreasing low shear rate Newtonian viscosity, HPBCD also extends the Newtonian behavior to higher shear rates as predicted by the free-path version of the transient network theory [Marrucci et al., Macromolecules 26, 6483-6488 (1993)]. (C) 2004 The Society of Rheology. (en)
  • Byly studovány změny tokového chování modifikovaného cyklicého oligosacharidu ve vodných roztocích modelového telechlického a asociativního polymeru. (cs)
Title
  • Vliv (2-hydroxypropyl)-beta-cyclodextrinu na reologii hydrofobně ukončených polyethylenglykolu (cs)
  • The Effect of (2-hydroxypropyl)-betacyclodextrin on Rheology of Hydorphobically end-capped Poly(ethylene glycol) Aueous Solutions
  • The Effect of (2-hydroxypropyl)-betacyclodextrin on Rheology of Hydorphobically end-capped Poly(ethylene glycol) Aueous Solutions (en)
skos:prefLabel
  • Vliv (2-hydroxypropyl)-beta-cyclodextrinu na reologii hydrofobně ukončených polyethylenglykolu (cs)
  • The Effect of (2-hydroxypropyl)-betacyclodextrin on Rheology of Hydorphobically end-capped Poly(ethylene glycol) Aueous Solutions
  • The Effect of (2-hydroxypropyl)-betacyclodextrin on Rheology of Hydorphobically end-capped Poly(ethylene glycol) Aueous Solutions (en)
skos:notation
  • RIV/00216275:25310/04:00001404!RIV08-MSM-25310___
http://linked.open.../vavai/riv/strany
  • 23-28
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 253100001)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 562110
http://linked.open...ai/riv/idVysledku
  • RIV/00216275:25310/04:00001404
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • associative triblock copolymers; beta-cyclodextrin polymers; ethoxylated urethanes; micellar-solutions; complex-formation; phase-separation; light-scattering; oxide; water; model (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [38FC7528382E]
http://linked.open...i/riv/nazevZdroje
  • Journal of Rheology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 48
http://linked.open...iv/tvurceVysledku
  • Horský, Jiří
  • Mikešová, Jana
  • Quadrat, Otakar
  • Šňupárek, Jaromír
http://linked.open...n/vavai/riv/zamer
issn
  • 0148-6055
number of pages
http://localhost/t...ganizacniJednotka
  • 25310
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