QUALITATIVE AND QUANTITATIVE DETERMINATION OF POLYARYLENE PHTHALIDES BASED ON THEIR ABILITY TO FORM INTENSELY COLOURED SOLUTIONS IN CONCENTRATED SULPHURIC ACID.

被引：0

作者：

Kraikin, V.A. ^{[1
]}

Zolotukhin, M.G. ^{[1
]}

Salazkin, S.N. ^{[1
]}

Rafikov, S.R. ^{[1
]}

机构：

[1] USSR Acad of Sciences, USSR, USSR Acad of Sciences, USSR

来源：

Polymer science USSR | 1985年 / 27卷 / 02期

关键词：

SOLUTIONS - Optical Properties - SULFURIC ACID;

D O I：

10.1016/0032-3950(85)90032-2

中图分类号：

学科分类号：

摘要：

It is shown for the first time that polyarylene phthalides form colored solutions in concentrated 94% sulfuric acid ( epsilon approx. 1 multiplied by 10**4 l. /mole. cm), which are characterized by relatively high stability of optical density. It was found that the color of solutions depends on the chemical structure of the dissolved polymer. A new highly sensitive method was developed (minimum concentration 0. 02 mu g/ml) for the quantitative determination of polyarylene phthalides, which involves the photometric evaluation of their colored solutions in sulfuric acid.

引用

页码：474 / 480