SPIN MODE-INSTABILITIES IN PROPAGATING FRONTS OF POLYMERIZATION

被引：59

作者：

POJMAN, JA

ILYASHENKO, VM

KHAN, AM

机构：

[1] Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg

来源：

PHYSICA D | 1995年 / 84卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0167-2789(95)00022-V

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We have observed two instabilities in propagating fronts of methacrylic acid polymerization, both elf which give the appearance of a spin mode. One occurs with liquid monomer when the tube is subjected to an external airflow to increase the rate of heat loss. It is a novel instability caused by convection related to bubble formation. Spinning modes very similar to ones observed in solid-state combustion reactions were observed when the initial methacrylic acid/initiator solution was maintained at 0 degrees C. The helical pattern left in the polymer and temperature profile measurements confirm for the first time the presence of a true spin mode in a constant velocity polymerization front.

引用

页码：260 / 268

页数：9

共 42 条

[1] THE PROPAGATION OF A SOLID-STATE COMBUSTION WAVE IN NI-AL FOILS [J].