Polymer Degradation in a Solution: Monitoring and Predicting Quality Parameters

被引：2

作者：

Tikhomirov, S. G. ^{[1
]}

Semenov, M. E. ^{[2
]}

Khaustov, I. A. ^{[1
]}

Bitukov, V. K. ^{[1
]}

Khvostov, A. A. ^{[2
]}

Karmanova, O. V. ^{[1
]}

Popov, A. P. ^{[1
]}

机构：

[1] Voronezh State Univ Engn Technol, Voronezh 394036, Russia

[2] MESC Zhukovsky & Gagarin Air Force Acad, Voronezh 394064, Russia

来源：

THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING | 2018年 / 52卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

thermooxidative degradation; simulation of degradation processes; molecular weight distribution; chemical technology; polymer structural molecular characteristics; CONTINUOUS KINETICS;

D O I：

10.1134/S0040579518040425

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The experimental study of polymer degradation processes in a solution is carried out. A mathematical description of the time dependences of the main polymer structural characteristics, i.e., the number average M-w and the weight average M-n molecular weight and the polydispersity coefficient K-p are obtained. For the model adequacy to be tested and the calculation error to be estimated, linear polymersSKD-ND rubbers are used as experimental samples. The change in the polymer molecular weight distribution (MWD) and its parameters are studied by gel permeation chromatography. The resulting dependences can be used for the process control systems. The developed mathematical description relates the controllable and control parameters in the structure (initial reagent concentrations, the reagent ratio, reaction temperature, etc.). However, the complete reconstruction of the mode of the MWD and its time dependence cannot be achieved.

引用

页码：568 / 573

页数：6

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