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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F14%3A39897839%21RIV15-MSM-25310___
rdf:type
skos:Concept n14:Vysledek
dcterms:description
Hydrogels based on modified glucomannan were prepared and characterized for potential use at plant nutrition and soil moisture regulation. As a source material glucomannan was used, which is a natural polysaccharide composed of repeating glucose and mannose units in a specific molar ratio. Glucomannan is obtained from the Amorphophallus konjac plant, which is grown mainly in the southeastern part of Asia. Preparation of hydrogels was carried out by crosslinking of glucomannan using fosforylating agents forming a three-dimensional network. As the agents, trisodium trimethaphosphate, pentasodium tripolyphosphate, and different dicarboxylic acids were used. Physicochemical properties were studied for prepared glucomannan hydrogels, such as swelling in water and saturated solutions of (NH4)2SO4 and urea, the rate of swelling and drying, the dependence of solubility on the temperature and number of swelling cycles. The nutrient content in the hydrogel swollen in saturated solutions of (NH4)2SO4 and urea was also studied, as well as the rate of release of nutrients into the aqueous environment. Hydrogels based on modified glucomannan were prepared and characterized for potential use at plant nutrition and soil moisture regulation. As a source material glucomannan was used, which is a natural polysaccharide composed of repeating glucose and mannose units in a specific molar ratio. Glucomannan is obtained from the Amorphophallus konjac plant, which is grown mainly in the southeastern part of Asia. Preparation of hydrogels was carried out by crosslinking of glucomannan using fosforylating agents forming a three-dimensional network. As the agents, trisodium trimethaphosphate, pentasodium tripolyphosphate, and different dicarboxylic acids were used. Physicochemical properties were studied for prepared glucomannan hydrogels, such as swelling in water and saturated solutions of (NH4)2SO4 and urea, the rate of swelling and drying, the dependence of solubility on the temperature and number of swelling cycles. The nutrient content in the hydrogel swollen in saturated solutions of (NH4)2SO4 and urea was also studied, as well as the rate of release of nutrients into the aqueous environment.
dcterms:title
Glucomannan Hydrogels for Agrochemical Utilization Glucomannan Hydrogels for Agrochemical Utilization
skos:prefLabel
Glucomannan Hydrogels for Agrochemical Utilization Glucomannan Hydrogels for Agrochemical Utilization
skos:notation
RIV/00216275:25310/14:39897839!RIV15-MSM-25310___
n6:aktivita
n15:S
n6:aktivity
S
n6:dodaniDat
n8:2015
n6:domaciTvurceVysledku
n9:3890821 n9:7670745 n9:8723265
n6:druhVysledku
n17:D
n6:duvernostUdaju
n10:S
n6:entitaPredkladatele
n16:predkladatel
n6:idSjednocenehoVysledku
18439
n6:idVysledku
RIV/00216275:25310/14:39897839
n6:jazykVysledku
n19:eng
n6:klicovaSlova
Swelling Ratio; Agriculture; Hydrogels; Glucomannan
n6:klicoveSlovo
n7:Hydrogels n7:Glucomannan n7:Swelling%20Ratio n7:Agriculture
n6:kontrolniKodProRIV
[542AA1BEDC05]
n6:mistoKonaniAkce
Mikulov
n6:mistoVydani
Praha
n6:nazevZdroje
Sborník abstrakt a plných textů ICCT 2014
n6:obor
n13:CA
n6:pocetDomacichTvurcuVysledku
3
n6:pocetTvurcuVysledku
3
n6:rokUplatneniVysledku
n8:2014
n6:tvurceVysledku
Bělina, Petr Hermann, Petr Svoboda, Ladislav
n6:typAkce
n20:EUR
n6:zahajeniAkce
2014-04-07+02:00
s:numberOfPages
5
n5:hasPublisher
Česká společnost průmyslové chemie
n18:isbn
978-80-86238-61-6
n11:organizacniJednotka
25310