KINETICS AND POLYDISPERSITY CHANGES DURING ACID-HYDROLYSIS OF STREPTOCOCCUS-SALIVARIUS LEVAN

被引：4

作者：

STIVALA, SS

LAUREN, MD

GARG, SK

机构：

[1] Department of Chemistry and Chemical Engineering, Stevens Institute of Technology, Hoboken

来源：

POLYMER | 1979年 / 20卷 / 01期

关键词：

D O I：

10.1016/0032-3861(79)90036-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The kinetics of the acid degradation of Streptococcus salivarius levan was studied by observing changes in the number-average molecular weight, M ̄n, using end-group analysis. Rate constants for the hydrolysis are presented and a tentative mechanism is forwarded. The data has been analysed according to a statistical model for a polymer with trifunctional branching and it is shown that the hydrolysis of levan proceeds through a mechanism quite different to that reported for the polysaccharide dextran. © 1979.

引用

页码：18 / 22

页数：5

共 27 条

[1] STUDIES ON DEXTRAN AND DEXTRAN DERIVATIVES .2. ACID HYDROLYSIS OF NATIVE DEXTRAN [J].