Self-similarity of dielectric relaxation and conductivity in cross-linking systems

被引：41

作者：

Casalini, R

Livi, A

Rolla, PA

Levita, G

Fioretto, D

机构：

[1] UNIV PISA, DEPT PHYS, I-56100 PISA, ITALY

[2] POLITECN MILAN, DEPT IND CHEM & CHEM ENGN, I-20133 MILAN, ITALY

[3] UNIV PERUGIA, IST NAZL FIS NUCL, I-06100 PERUGIA, ITALY

[4] UNIV PERUGIA, DEPT PHYS, I-06100 PERUGIA, ITALY

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.53.564

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dielectric measurements of a polymerizing amine/epoxy system were carried out in the frequency interval 10(3)-10(10) Hz. The vitrification of the system due to the increase of connectivity was analyzed by measuring the change of the shape parameters of the main relaxation, m and n, during the reaction; the sol-gel transition was also studied by simultaneously measuring the de conductivity. Results indicate that the relaxation and conductivity behavior of the system can be satisfactorily described under theories based on a percolation approach.

引用

页码：564 / 568

页数：5

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