Structure of absorbed water in cis-1,4-polyisoprene rubber and its effect on properties of polymers

被引：6
作者：
Sato, Kazuaki [1 ]
Ikeda-Fukazawa, Tomoko [1 ]
机构：
[1] Meiji Univ, Dept Appl Chem, Kawasaki 2148571, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2023年 / 827卷
关键词：
cis-1; 4-polyisoprene; Rubber; Water; Differential scanning calorimetry (DSC); TEMPERATURE; HYDROPHOBICITY; ABSORPTION; DYNAMICS; SURFACE;
D O I：
10.1016/j.cplett.2023.140694
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：
To investigate the structures of absorbed water in cis-1,4-polyisoprene rubber (IPR) and their effects on the properties of IPR, differential scanning calorimetric (DSC) measurements were performed with heating from 200 K to 298 K. The result shows that the melting point of water and glass transition point of IPR depend on water content. The shift of the melting point indicates that the water exists as nanometer-sized droplets in IPR. The glass transition point of IPR changes with the specific surface area of the water droplets. It is concluded that absorbed water in hydrophobic rubbers affects thermal properties of the rubbers.
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页数：7
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