Structure of junction zones in poly (vinyl alcohol) gels by rheological and thermal studies

被引：32
|
作者：
Nishinari, K
Watase, M
Tanaka, F
机构：
[1] SHIZUOKA UNIV,FAC AGR,OHYA,SHIZUOKA 422,JAPAN
[2] TOKYO UNIV AGR & TECHNOL,FAC ENGN,TOKYO 184,JAPAN
来源：
JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE | 1996年 / 93卷 / 05期
关键词：
gel; junction zone; poly(vinyl alcohol); rheology; differential scanning calorimetry;
D O I：
10.1051/jcp/1996930880
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Differential scanning calorimetry (DSC) and dynamic viscoelastic measurements were carried out far poly(vinyl alcohol) (PVA) gels with different molecular weights and various concentrations prepared by a freeze-thaw process. The temperature dependence and the concentration dependence of the elastic modulus of PVA gels were interpreted by a reel-chain model and a cascade treatment respectively. Structural parameter; for junction zones of PVA gels were determined by a modified Eldridge-Ferry plot for DSC data as follows: junction zone consists of 2 similar to 3 ordered chains with about 24 similar to 120 segments.
引用
收藏
页码：880 / 886
页数：7
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