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Statements

Subject Item
n2:RIV%2F70883521%3A28610%2F13%3A43869807%21RIV14-MSM-28610___
rdf:type
skos:Concept n18:Vysledek
rdfs:seeAlso
http://onlinelibrary.wiley.com/doi/10.1002/app.39017/pdf
dcterms:description
This work is focused on determination of the effect of a calcium-based inorganic impurity originating from biotechnological L-lactic acid production from cheese whey on the synthesis of poly(L-lactic acid). The influence of the impurity was investigated in the range of 0 to 1 wt % and the product properties were studied by analytical techniques GPC, FTIR-ATR, acid end group analysis and DSC. The final product was used to prepare submicron particles, which were analyzed by dynamic light scattering and electron microscopy. Results show a moderate reduction in molecular weight in connection with an increase in the amount of the impurity up to 0.75 wt %. Further increase in the concentration of the impurity caused decomposition. Investigating the thermal properties reveals a noticeable reduction in the melting temperature and a slight decrease in glass transition temperature. The prepared submicron particles had a Z-average diameter of between 280 and 520 nm, depending on the emulsifying system, and the presence of the inorganic impurity seems to play no role during particle formation. This work is focused on determination of the effect of a calcium-based inorganic impurity originating from biotechnological L-lactic acid production from cheese whey on the synthesis of poly(L-lactic acid). The influence of the impurity was investigated in the range of 0 to 1 wt % and the product properties were studied by analytical techniques GPC, FTIR-ATR, acid end group analysis and DSC. The final product was used to prepare submicron particles, which were analyzed by dynamic light scattering and electron microscopy. Results show a moderate reduction in molecular weight in connection with an increase in the amount of the impurity up to 0.75 wt %. Further increase in the concentration of the impurity caused decomposition. Investigating the thermal properties reveals a noticeable reduction in the melting temperature and a slight decrease in glass transition temperature. The prepared submicron particles had a Z-average diameter of between 280 and 520 nm, depending on the emulsifying system, and the presence of the inorganic impurity seems to play no role during particle formation.
dcterms:title
Influence of natural inorganic impurity on the synthesis of poly(L -lactic acid), properties and nanofabrication Influence of natural inorganic impurity on the synthesis of poly(L -lactic acid), properties and nanofabrication
skos:prefLabel
Influence of natural inorganic impurity on the synthesis of poly(L -lactic acid), properties and nanofabrication Influence of natural inorganic impurity on the synthesis of poly(L -lactic acid), properties and nanofabrication
skos:notation
RIV/70883521:28610/13:43869807!RIV14-MSM-28610___
n18:predkladatel
n19:orjk%3A28610
n3:aktivita
n4:S n4:P
n3:aktivity
P(ED2.1.00/03.0111), S
n3:cisloPeriodika
1
n3:dodaniDat
n10:2014
n3:domaciTvurceVysledku
n6:1040510 n6:3917436 n6:6339603 n6:3382257 n6:8588716
n3:druhVysledku
n20:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
79851
n3:idVysledku
RIV/70883521:28610/13:43869807
n3:jazykVysledku
n15:eng
n3:klicovaSlova
biodegradable||nanocrystals||nanoparticles||nanowires||polycondensation||polyesters
n3:klicoveSlovo
n11:biodegradable%7C%7Cnanocrystals%7C%7Cnanoparticles%7C%7Cnanowires%7C%7Cpolycondensation%7C%7Cpolyesters
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[DC12BEB41325]
n3:nazevZdroje
Journal of Applied Polymer Science
n3:obor
n16:CD
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n21:ED2.1.00%2F03.0111
n3:rokUplatneniVysledku
n10:2013
n3:svazekPeriodika
130
n3:tvurceVysledku
Sedlařík, Vladimír Urbánková, Miroslava Koutný, Marek Stloukal, Petr Kucharczyk, Pavel
n3:wos
000321305500007
s:issn
0021-8995
s:numberOfPages
7
n17:doi
10.1002/app.39017
n14:organizacniJednotka
28610