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of 52
pro vyhledávání: '"Besemer, A.C."'
Publikováno v:
Starch/Staerke, 12, 58, 616-622
This paper describes the difference in relative reactivity of the aldehyde groups present in dialdehyde starch towards different oxidising agents. The oxidation of dialdehyde starch with peracetic acid and sodium bromide leads to only partial oxidati
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Publikováno v:
Starch/Staerke, 10, 55, 443-449
The improved tandem oxidation sequence of starch with the aim of developing, e.g. degradable co-builders suitable for laundry formulations as an alternative to the currently used polyacrylates is described. The tandem oxidation of starch starts with
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Publikováno v:
Chimica Oggi, 7-8, 21, 56-58
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Publikováno v:
ACS Symposium Series, 688, 73-82
Three methods for the selective oxidation of cellulose are described. The classical method consists of consecutive oxidation with sodium periodate, leading to 2,3-dialdehyde cellulose and sodium chlorite, giving 2,3-dicarboxy cellulose. This material
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Autor:
Besemer, A.C., Bekkum, H. van
Publikováno v:
Carbohydrates as organic raw materials III, 273-294
Present-day West-European builder systems in detergent formulations often consist of zeolite NaA together with a synthetic polycarboxylate. The latter materials are nonbiodegradable and substitutes should be considered. Carbohydrates seem attractive
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Publikováno v:
Tetrahedron, 29, 51, 8023-8032
The kinetics of the TEMPO-mediated oxidation of methyl α-D- glucopyranoside to sodium methyl α-D-glucopyranosiduronate were studied. An intermediate was found which was identified as the hydrated aldehyde. This was oxidised in the same manner as th
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Publikováno v:
Carbohydrate Research, 1, 269, 89-98
With catalytic amounts of 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) and hypochlorite/bromide as the regenerating oxidant in water, primary alcohol groups in glucans and derivatives thereof were rapidly and completely oxidised. For pyranosides, sel
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Autor:
Besemer, A.C., Bekkum, H. van
Publikováno v:
Starch/Stärke, 11 S, 46, 419-422
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