Results 301 to 310 of about 648,084 (374)
Some of the next articles are maybe not open access.
Molecular Crystals and Liquid Crystals, 2003
The mass contents in five samples of a nematic azobenzene polymethacrylate having different molar masses and molar mass distributions were evaluated starting from either Logarithmic Normal (LN) or ...
ANDREOZZI, LAURA +5 more
openaire +2 more sources
The mass contents in five samples of a nematic azobenzene polymethacrylate having different molar masses and molar mass distributions were evaluated starting from either Logarithmic Normal (LN) or ...
ANDREOZZI, LAURA +5 more
openaire +2 more sources
Makromolekulare Chemie. Macromolecular Symposia, 1992
AbstractBlood plasma substitutes, such as dextran and hydroxyethyl starch, cause an expansion of the liquid volume in blood vessels due to their high colloid‐osmotic pressure and water‐binding potential, and are therefore applied clinically as so‐called plasma expanders for rapidly increasing the liquid volume.
R. Lemmes, D. Schwengers, B. Weimann
openaire +1 more source
AbstractBlood plasma substitutes, such as dextran and hydroxyethyl starch, cause an expansion of the liquid volume in blood vessels due to their high colloid‐osmotic pressure and water‐binding potential, and are therefore applied clinically as so‐called plasma expanders for rapidly increasing the liquid volume.
R. Lemmes, D. Schwengers, B. Weimann
openaire +1 more source
Fast Track to Molar‐Mass Distributions of Technical Lignins
ChemSusChem, 2017AbstractTechnical lignins (waste products obtained from wood pulping or biorefinery processes) have so far required lengthy analysis procedures and different eluents for molar‐mass analysis by gel permeation chromatography (GPC). This challenge has become more pressing recently since attempts to utilize lignins have increased, leading to skyrocketing ...
Irina Sulaeva +5 more
openaire +2 more sources
Molar mass distributions of end‐linked polystyrene star macromolecules
Polymer International, 1997Polystyrene three-arm star molecules with OH tips were prepared by living anionic polymerization using an acetal-protected lithium initiator followed by coupling with 1,3,5-triallyl-oxy-2,4,6-triazine and ensuing cleavage of the acetol groups. The functionalized star molecules were end-crosslinked by toluene-2,4-diisocyanate.
Max Weissmüller, Walther Burchard
openaire +1 more source
Determining molar mass distribution of polypropylene by temperature precipitation
Polymer Science U.S.S.R., 1985Abstract Methods are proposed for determining MD of polypropylene by temperature precipitation. Conditions of temperature fractionation in a O solvent were established experimentally and confirmed theoretically; constants were calculated for the conversion of temperature distribution to molar mass distribution.
N.N. Komova +3 more
openaire +1 more source
Analysis and molar mass distribution of polyoxyethylene 4-alkylphenylamines
Journal of Chromatography A, 1989Abstract Polyoxyethylene 4-alkylphenylamines having from 1 to 16 carbon atoms in their alkyl groups and average degrees of ethoxylation from 1 to 8 were analyzed by gas chromatography and distribution coefficients were computed Successive homologues having different numbers of oxyethylene groups were separated according to their increasing molar ...
Maciej Wiśniewski +2 more
openaire +1 more source
Molar mass distributions by gradient liquid chromatography: predicting and tailoring selectivity
Journal of Chromatography A, 2005Interactive liquid chromatography (iLC) for polymer analysis is usually applied to the characterisation of distributions other than molar mass. In particular, its use for the determination of chemical-composition, functionality-type and tacticity distributions has been demonstrated.
Fitzpatrick, F.P. +2 more
openaire +4 more sources
ACS Macro Letters, 2021
Graft polymers are useful in a versatile range of material applications. Understanding how changes to the grafted architecture, such as the grafting density (z), the side-chain degree of polymerization (Nsc), and the backbone degree of polymerization ...
Aristotelis Zografos +3 more
semanticscholar +1 more source
Graft polymers are useful in a versatile range of material applications. Understanding how changes to the grafted architecture, such as the grafting density (z), the side-chain degree of polymerization (Nsc), and the backbone degree of polymerization ...
Aristotelis Zografos +3 more
semanticscholar +1 more source
Determination of molar mass distribution of poly(tetrafluoroethylene)
Makromolekulare Chemie. Macromolecular Symposia, 1992AbstractHigh‐temperature static and dynamic laser light scattering characterization of polytetrafluoroethylene in perfluorotetracosane has been accomplished after solving the following experimental difficulties: (1) constructing a high‐temperature laser light scattering spectrometer which can be operated at a temperature as high as 340 °C, (2 ...
openaire +1 more source
Journal of Microcolumn Separations, 2000
In this paper, the gel permeation chromatography–gas chromatography (GPC–GC) method was proposed to carry out determination of average molar masses and molar mass distribution of polymers and concentration of additives simultaneously. In this method, after the determination of average molar masses and molar mass distribution by ordinary GPC, a part of ...
Nobuya Kobayashi +2 more
openaire +1 more source
In this paper, the gel permeation chromatography–gas chromatography (GPC–GC) method was proposed to carry out determination of average molar masses and molar mass distribution of polymers and concentration of additives simultaneously. In this method, after the determination of average molar masses and molar mass distribution by ordinary GPC, a part of ...
Nobuya Kobayashi +2 more
openaire +1 more source