VISCOSITY BEHAVIOR OF LACQUER POLYSACCHARIDE IN AQUEOUS SOLUTION

The dependence of measured viscosity on NaCl concentration （0.1 to 3.0M）, pH （range of 2—13） and cadoxen composition wcad （from 2% to 100%） for the lacquer polysaccharide in NaCl/cadoxen/H2O mixture containing HCl or without were obtained. All the viscosity exponents γin the Mark-Houwink equations u...

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Veröffentlicht in:	高分子科学：英文版 1991 (1), p.94-100
1. Verfasser:	邱星屏张俐娜杜予民钱保功
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Schlagworte:	Aqueous cadoxen Intrinsic Lacquer Polysaccharidc solution viscosity
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description	The dependence of measured viscosity on NaCl concentration （0.1 to 3.0M）, pH （range of 2—13） and cadoxen composition wcad （from 2% to 100%） for the lacquer polysaccharide in NaCl/cadoxen/H2O mixture containing HCl or without were obtained. All the viscosity exponents γin the Mark-Houwink equations under three different solvent condition arc close to 0.5. The wcad dependence of reduced viscosity ηsp/c confirms the single strand chain of the polysaccharide. As the γvalues close to 0.5 and values of unperturbed dimension <S2>θ/M and [η] much smaller than those for usual linear polymers, these facts suggest that the polysaccharide chains in the aqueous solutions should be dense random coil owing to the highly branched structure.
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All the viscosity exponents γin the Mark-Houwink equations under three different solvent condition arc close to 0.5. The wcad dependence of reduced viscosity ηsp/c confirms the single strand chain of the polysaccharide. As the γvalues close to 0.5 and values of unperturbed dimension &lt;S2&gt;θ/M and [η] much smaller than those for usual linear polymers, these facts suggest that the polysaccharide chains in the aqueous solutions should be dense random coil owing to the highly branched structure.</description><identifier>ISSN: 0256-7679</identifier><identifier>EISSN: 1439-6203</identifier><language>eng</language><subject>Aqueous ; cadoxen ; Intrinsic ; Lacquer ; Polysaccharidc ; solution ; viscosity</subject><ispartof>高分子科学：英文版, 1991 (1), p.94-100</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/86788X/86788X.jpg</thumbnail><link.rule.ids>314,780,784,4023</link.rule.ids></links><search><creatorcontrib>邱星屏张俐娜杜予民钱保功</creatorcontrib><title>VISCOSITY BEHAVIOR OF LACQUER POLYSACCHARIDE IN AQUEOUS SOLUTION</title><title>高分子科学：英文版</title><addtitle>Chinese Journal of Polymer Science</addtitle><description>The dependence of measured viscosity on NaCl concentration （0.1 to 3.0M）, pH （range of 2—13） and cadoxen composition wcad （from 2% to 100%） for the lacquer polysaccharide in NaCl/cadoxen/H2O mixture containing HCl or without were obtained. All the viscosity exponents γin the Mark-Houwink equations under three different solvent condition arc close to 0.5. The wcad dependence of reduced viscosity ηsp/c confirms the single strand chain of the polysaccharide. 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All the viscosity exponents γin the Mark-Houwink equations under three different solvent condition arc close to 0.5. The wcad dependence of reduced viscosity ηsp/c confirms the single strand chain of the polysaccharide. As the γvalues close to 0.5 and values of unperturbed dimension &lt;S2&gt;θ/M and [η] much smaller than those for usual linear polymers, these facts suggest that the polysaccharide chains in the aqueous solutions should be dense random coil owing to the highly branched structure.</abstract></addata></record>
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subjects	Aqueous cadoxen Intrinsic Lacquer Polysaccharidc solution viscosity
title	VISCOSITY BEHAVIOR OF LACQUER POLYSACCHARIDE IN AQUEOUS SOLUTION
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