Double layer humidity sensor based on phthalocyanine derivatives
Rakušan, J.; Karásková, M.; Hamáček, A.; Řeboun, J.; Kubáč, L.; Černý, J.; Rais, David; Nešpůrek, Stanislav
2011 - anglický New type of humidity sensors based on double layer structure consisting of hydrophilic and hydrophobic phthalocyanine derivatives is presented. The sensor shows high sensitivity in the range from 20 to 90 % relative humidity (RH), good long-time stability and fast response. The impedance change vs. RH is quasi-linear in semilogarithmic plot and fully reversible. Klíčová slova: humidity sensor; phthalocyanines; double layer structure Dokument je dostupný na externích webových stránkách. Double layer humidity sensor based on phthalocyanine derivatives

New type of humidity sensors based on double layer structure consisting of hydrophilic and hydrophobic phthalocyanine derivatives is presented. The sensor shows high sensitivity in the range from 20 ...

Rakušan, J.; Karásková, M.; Hamáček, A.; Řeboun, J.; Kubáč, L.; Černý, J.; Rais, David; Nešpůrek, Stanislav
Ústav makromolekulární chemie, 2011

Swelling and mechanical properties of particulate composites with matrix in rubbery state
Dušek, Karel; Dušková-Smrčková, Miroslava; Šomvársky, J.; Nezbedová, E.; Náhlík, Luboš
2011 - anglický Klíčová slova: swelling; mechanical properties Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR. Swelling and mechanical properties of particulate composites with matrix in rubbery state

Dušek, Karel; Dušková-Smrčková, Miroslava; Šomvársky, J.; Nezbedová, E.; Náhlík, Luboš
Ústav makromolekulární chemie, 2011

Wheat B-starch based polymeric materials
Kotek, Jiří; Kruliš, Zdeněk; Šárka, E.
2011 - anglický The contribution is aimed at preparation of a thermoplastic material derived from the wheat B-starch. Two ways have been followed, namely blending of the starch with poly(ε-caprolactone) (PCL) and plasticizing of the starch. In both cases, properties of the materials based on the B-starch are comparable to analogous materials based on the A-starch. The prepared materials have potential application as biodegradable films for agriculture. Klíčová slova: biodegradable plastic; polycaprolactone; B-starch Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR. Wheat B-starch based polymeric materials

The contribution is aimed at preparation of a thermoplastic material derived from the wheat B-starch. Two ways have been followed, namely blending of the starch with poly(ε-caprolactone) (PCL) and ...

Kotek, Jiří; Kruliš, Zdeněk; Šárka, E.
Ústav makromolekulární chemie, 2011

Hybrid structures based on montmorillonite/modified starch intercalate
Duchek, P.; Špírková, Milena
2010 - anglický Intercalates based on several commercial cationized starches with degree of substitution D=0.04-0.17, and sodium montmorillonite were prepared. The XRD analyses of resulting organic/inorganic hybrids proved that modification in the starch structure leads to embedding the polycation into montmorillonite clay gallery. Lower degree of starch cationization results in bigger enlargement of the interlayer space in the hybrid structure. Klíčová slova: organic/inorganic hybrides; montmorillonite Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR. Hybrid structures based on montmorillonite/modified starch intercalate

Intercalates based on several commercial cationized starches with degree of substitution D=0.04-0.17, and sodium montmorillonite were prepared. The XRD analyses of resulting organic/inorganic hybrids ...

Duchek, P.; Špírková, Milena
Ústav makromolekulární chemie, 2010

Vliv struktury materiálu na chemickou recyklaci polyurethanu při mikrovlnném ohřevu
Prokop, Jiří; Beneš, Hynek; Kruliš, Zdeněk; Mikešová, Jana; Kříž, Jaroslav
2010 - český Klíčová slova: microwave heating; glycolysis; recycling Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR. Vliv struktury materiálu na chemickou recyklaci polyurethanu při mikrovlnném ohřevu

Prokop, Jiří; Beneš, Hynek; Kruliš, Zdeněk; Mikešová, Jana; Kříž, Jaroslav
Ústav makromolekulární chemie, 2010

Humidity sensor based on TiO2 nanoparticles and sodium salt of sulfonated AlOH phthalocyanine
Rakušan, J.; Karásková, M.; Hamáček, A.; Řeboun, J.; Rais, David; Nešpůrek, Stanislav
2010 - anglický New type of humidity sensor based on TiO2 nanoparticles and sodium salt of sulfonated AlOH phthalocyanine is presented. The sensor shows high sensitivity due to the high surface area of TiO2 nanoparticles, good long-time stability and sensitivity in the range from 20 to 80 % RH. The response is linear in semilogarithmic plot – logarithm of impedance vs. RH and fully reversible. Klíčová slova: humidity sensor; TiO2; phthalocyanines Dokument je dostupný na externích webových stránkách. Humidity sensor based on TiO2 nanoparticles and sodium salt of sulfonated AlOH phthalocyanine

New type of humidity sensor based on TiO2 nanoparticles and sodium salt of sulfonated AlOH phthalocyanine is presented. The sensor shows high sensitivity due to the high surface area of TiO2 ...

Rakušan, J.; Karásková, M.; Hamáček, A.; Řeboun, J.; Rais, David; Nešpůrek, Stanislav
Ústav makromolekulární chemie, 2010

Novel nanocomposite materials for power engineering
Boček, J.; Matějka, Libor; Mentlík, V.
2010 - anglický The epoxy-POSS nanocomposites were prepared and their electrical/dielectric and thermomechanical properties were determined. The mono- and octa-epoxyfunctionalized POSS (POSS,E1 and POSS,E8) were covalently incorporated in the epoxy network matrix DGEBA- 3,3’-dimethyl-4,4’-diaminocyclohexylmethane (Laromin C260) as pendant units or as polyhedral junctions, respectively. While the POSS junctions are well dispersed in the hybrid network DGEBA-Laromin-POSS,E8, the pendant POSS aggregate to form large crystalline POSS domains. Klíčová slova: nanocomposite; epoxy resin; insulating system Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR. Novel nanocomposite materials for power engineering

The epoxy-POSS nanocomposites were prepared and their electrical/dielectric and thermomechanical properties were determined. The mono- and octa-epoxyfunctionalized POSS (POSS,E1 and POSS,E8) were ...

Boček, J.; Matějka, Libor; Mentlík, V.
Ústav makromolekulární chemie, 2010

Nízkoenergetický způsob recyklace polyurethanového odpadu
Beneš, Hynek; Kruliš, Zdeněk; Hájek, Milan; Holler, Petr; Látalová, Petra; Prokop, Jiří
2010 - český Klíčová slova: polyurethane waste; recycling; microwave Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR. Nízkoenergetický způsob recyklace polyurethanového odpadu

Beneš, Hynek; Kruliš, Zdeněk; Hájek, Milan; Holler, Petr; Látalová, Petra; Prokop, Jiří
Ústav makromolekulární chemie, 2010

Cation and anion exchangers from nanofibrous polystyrene for fast water treatment
Marek, J.; Beneš, Milan J.; Jelínek, L.
2009 - anglický Strongly acidic sulfonovaný cation exchanger on polystyrene nanofibrous matrix (Nanospider TM technology) was prepared by simultaneous sulfonation and crosslinking. Weakly basic nanofibrous anion exchanger was prepared after transformation of sulfogroups to sulfochloride by reaction with ethylene diamine. Nanofibrous products were characterized by sorption capacity. They have sorption kinetic significantly faster in comparison with standard granular ion exchangers. Současnou sulfonací a síťováním byl připraven silně kyselý sulfonový katex na polystyrenové nanovláknité matrici (Nanospider TM technologie). Slabě bázický anex byl připraven po převedení sulfoskupin na sulfochlorid reakci s ethylen diaminem. Nanovláknité produkty byly charakterizovány pomocí sorpční kapacity. Mají kinetiku sorpce výrazně rychlejší než standardní sorbenty granulární. Klíčová slova: polystyrene; nanofiber; ion exchanger Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR. Cation and anion exchangers from nanofibrous polystyrene for fast water treatment

Strongly acidic sulfonovaný cation exchanger on polystyrene nanofibrous matrix (Nanospider TM technology) was prepared by simultaneous sulfonation and crosslinking. Weakly basic nanofibrous anion ...

Marek, J.; Beneš, Milan J.; Jelínek, L.
Ústav makromolekulární chemie, 2009

Self-assembled nanostructures in copolymer blends: SAXS, SANS and TEM study
Holoubek, Jaroslav; Baldrian, Josef; Hromádková, Jiřina; Steinhart, Miloš
2009 - anglický Phenomena associated with the phase behaviour and self-assembled nanostructures of three block copolymer systems have been studied by small-angle X-ray scattering (SAXS), small-angle neutron scattering (SANS) and transmision electron microscopy (TEM) Klíčová slova: total hip replacement; polyethylene wear; aseptic loosening Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR. Self-assembled nanostructures in copolymer blends: SAXS, SANS and TEM study

Phenomena associated with the phase behaviour and self-assembled nanostructures of three block copolymer systems have been studied by small-angle X-ray scattering (SAXS), small-angle neutron ...

Holoubek, Jaroslav; Baldrian, Josef; Hromádková, Jiřina; Steinhart, Miloš
Ústav makromolekulární chemie, 2009