Cation/macromolecule interaction in alkaline cellulose solution characterized with pulsed field-gradient spin-echo NMR spectroscopy

被引：18
|
作者：
Wang, Sen [1 ]
Sun, Peng [2 ]
Zhang, Rongrong [1 ]
Lu, Ang [1 ]
Liu, Maili [2 ]
Zhang, Lina [1 ]
机构：
[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
[2] Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2017年 / 19卷 / 11期
基金：
国家自然科学基金重大项目; 中国国家自然科学基金;
关键词：
INCLUSION COMPLEX; LIGHT-SCATTERING; IONIC LIQUIDS; DISSOLUTION; DIFFUSION; BEHAVIOR; WATER;
D O I：
10.1039/c6cp08744b
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
As a breakthrough to the traditional H-1 diffusometry, the interaction of cations with cellulose is investigated via Li-7 and Na-23 PFG-SE NMR. The diffusion coefficient of Li+ decreases more than that of Na+ with the addition of cellulose, which indicates a stronger binding of LiOH with the macromolecule. Therefore, a new, facile, accurate and repeatable method to characterize ion/polymer interactions is established.
引用
收藏
页码：7486 / 7490
页数：5
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