摘要
本文用GPC法研究了水溶液中黄原胶的构象及构象的变化。指出在低离子强度下,黄原胶主要是以多分子缔合状态而存在,少量以单分子状态而存在。缔合状态下的黄原胶分子呈分段的双股螺旋构象。
The conformation of xanthan molecule in aqueous solution was investigated by GPC. It is indicated that two states of xanthan exist simultaneously in aqueous solution at low ion-intensity. One of the two states is polyassociated double-stranded helix, and the other is single molecular state. These two states can transform each other under some conditions.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1990年第3期322-326,共5页
Acta Polymerica Sinica
关键词
黄原胶
多糖
构象
分子结构
Xanthan, Polysaccharide, Conformation, Molecular structure