About: Kinetics of Dissolution of Na+[Carboxymethylcellulose] and Oxycellulose Mixture     Goto   Sponge   NotDistinct   Permalink

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Description
  • Byly proměřeny kinetické křivky rozpouštění tuhých filmů sodné soli karboxymethylcellulózy a oxycelulózy připravených jejích směšování ve formě gelů. byly stanoveny parametry procesu rozpouštění (tQ, uOC, deltaH nerovná se i,j, RAdelta,i) pro přesně definované kompozice složení směsi. Bylo zjištěno, že vnitřní tlak tuhé naboptnalé vrstvičky klesá s narůstajícím obsahem oxycelulózy ve směsi a současně narůstá aktivační entalpie difuze spojené s botnáním deltaH nerovná se D,s. (cs)
  • There was studied the kinetics of dissolution of solid films of NaCMC and OC prepared from their mixtures in water by fast plaster casting method on Petri dishes. The dependences of the kinetics parameters of the process (tQ, uOC, deltaH does not equal i,j, RAdelta,i) on the given polymer compositions were determined. It has been found, that internal pressure in the solid swollen layer decreased with increasing content of OC in the mixture as well as the activation enthalpy of diffusion connected with swelling deltaH does not equal D,s.
  • There was studied the kinetics of dissolution of solid films of NaCMC and OC prepared from their mixtures in water by fast plaster casting method on Petri dishes. The dependences of the kinetics parameters of the process (tQ, uOC, deltaH does not equal i,j, RAdelta,i) on the given polymer compositions were determined. It has been found, that internal pressure in the solid swollen layer decreased with increasing content of OC in the mixture as well as the activation enthalpy of diffusion connected with swelling deltaH does not equal D,s. (en)
Title
  • Kinetics of Dissolution of Na+[Carboxymethylcellulose] and Oxycellulose Mixture
  • Kinetics of Dissolution of Na+[Carboxymethylcellulose] and Oxycellulose Mixture (en)
  • Kinetika rozpouštění směsi sodné soli karboxymethylcelulózy a oxycelulózy (cs)
skos:prefLabel
  • Kinetics of Dissolution of Na+[Carboxymethylcellulose] and Oxycellulose Mixture
  • Kinetics of Dissolution of Na+[Carboxymethylcellulose] and Oxycellulose Mixture (en)
  • Kinetika rozpouštění směsi sodné soli karboxymethylcelulózy a oxycelulózy (cs)
skos:notation
  • RIV/70883521:28110/08:63507392!RIV09-MSM-28110___
http://linked.open...avai/riv/aktivita
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  • Z(MSM7088352101)
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  • 374778
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  • RIV/70883521:28110/08:63507392
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  • kinetics; dissolution; CMC; oxycellulose; gels (en)
http://linked.open.../riv/klicoveSlovo
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  • [D246DC508644]
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  • VŠCHT Praha
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  • Chemické listy
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  • Bartoš, Michal
  • Lapčík, Lubomír
  • Minařík, Antonín
  • Procházka, Antonín
  • Macháčková, Alena
  • Rašner, Jiří
http://linked.open...vavai/riv/typAkce
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http://linked.open...n/vavai/riv/zamer
issn
  • 0009-2770
number of pages
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  • Česká společnost chemická
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  • 28110
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