STUDY OF THE PRESSURE EFFECT ON POLYDIACETYLENE IN GOOD SOLVENT

被引：4

作者：

AIME, JP

KING, HE

KIM, MW

CHANCE, RR

机构：

[1] EXXON RES & ENGN CO,ANNANDALE,NJ 08801

[2] EXXON CHEM CO,DIV PARAMINS TECHNOL,LINDEN,NJ 07036

来源：

SYNTHETIC METALS | 1991年 / 41卷 / 1-2期

关键词：

D O I：

10.1016/0379-6779(91)91038-C

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have done visible absorption spectroscopy on p4BCMU in THF up to 20 kilobars. A red shift of the maximum of the absorption spectrum is observed as a function of the pressure. The change is continuous, reversible and does not exhibit any hysteresis. This result is a strong indication that an homogeneous solution remains at all pressures. The red shift can not be related to an aggregation process or a gel formation as it is for p4BCMU in toluene. The red shift can be explained either by a solvent change or a conformational change of the chain. From the comparison with experiments made on short oligomers we discuss the two possibilities.

引用

页码：203 / 207

页数：5