肿胀 的
聚丙烯酸
缩放比例
自愈水凝胶
聚合物
材料科学
生物高聚物
高分子化学
相(物质)
热力学
化学工程
高分子科学
化学
复合材料
物理
数学
有机化学
几何学
工程类
作者
Junhao Fei,Tao Tang,Likang Zhou,Huiwen He,Meng Ma,Yanqin Shi,Si Chen,Xu Wang
出处
期刊:Polymer
[Elsevier]
日期:2024-04-01
卷期号:300: 126828-126828
被引量:1
标识
DOI:10.1016/j.polymer.2024.126828
摘要
There exist two theories on the swelling behavior of cross-linked polymer networks treated by statistical thermodynamic and scalar methods, respectively. These two theories predict inconsistent network chain length dependence of the swelling ratio. The swelling of biopolymer gels is analysed with scaling laws from polymer physics, as an alternative for the classical Flory-Rehner theory. In this paper, the swelling data of sodium lignosulfonate grafted polyacrylic acid cross-linked networks in good solvents are reanalyzed, and it is pointed out that these networks are a typical model network conforming to the two-phase structural picture. For the swelling behavior of gels in the semi-dilute regime we derive the scaling theory based swelling equations, which make them compact and universal character.
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