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

被引：33

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

页码：880 / 886

页数：7

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