LIGHT SCATTERING OF POLYSACCHARIDE FROM LACQUER IN AQUEOUS SOLUTION

ZHANG Lina; DU Yumin; KUMANOTANI JU

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LIGHT SCATTERING OF POLYSACCHARIDE FROM LACQUER IN AQUEOUS SOLUTION

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- LIGHT SCATTERING OF POLYSACCHARIDE FROM LACQUER IN AQUEOUS SOLUTION
- Vol. 7, Issue 3, Pages: 252-257(1989)
- Affiliations：
  
  1. Department of Chamistry, Wuhan University, Wuhan) KUMANOTANI JU
  2.   Wuhan University
  3.   Wuhan
  4.   Faculty of Engineering
  5.   Ehime University
  6.   Japan
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ZHANG Lina, DU Yumin, KUMANOTANI JU. LIGHT SCATTERING OF POLYSACCHARIDE FROM LACQUER IN AQUEOUS SOLUTION. [J]. 7(3):252-257(1989)
DOI：

ZHANG Lina, DU Yumin, KUMANOTANI JU. LIGHT SCATTERING OF POLYSACCHARIDE FROM LACQUER IN AQUEOUS SOLUTION. [J]. 7(3):252-257(1989) DOI：

摘要

<,正,>, The polysaccharide having weight-average molecular weight M,w,=1. 09×10,5, isolated from the sap of lac trees （Vietnam）, was separated into 12 fractions by aqueous-phase preparative gel permeation chromatography. The molecular weights and molecular weight distributions of the fractions were measured in aqueous 0.08M KCl/0.01 M NaAc and 0.4M KCl/0.05M NaAc at pH =7. 6 by light scattering, viscometry and gel permeation chromatography. The Mark-Houwink equation in aqueous 0.08M KCl/0.01M NaAc at 30℃was found to be [η]= 2.28×10,-2, M,w,0.52, （cm,3,/g）, which indicated the polysaccharide chain in the aqueous solution to be a spherical random coil.

Abstract

The polysaccharide having weight-average molecular weight M,w,=1. 09×10,5, isolated from the sap of lac trees （Vietnam）, was separated into 12 fractions by aqueous-phase preparative gel permeation chromatography. The molecular weights and molecular weight distributions of the fractions were measured in aqueous 0.08M KCl/0.01 M NaAc and 0.4M KCl/0.05M NaAc at pH =7. 6 by light scattering, viscometry and gel permeation chromatography. The Mark-Houwink equation in aqueous 0.08M KCl/0.01M NaAc at 30℃ was found to be [η]= 2.28×10,-2, M,w,0.52, （cm,3,/g）, which indicated the polysaccharide chain in the aqueous solution to be a spherical random coil.

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