Unusual Role of N-Methylmorpholine N-Oxide in the Radical Polymerization of Acrylonitrile

被引：0

作者：

Toms, R. V. ^{[1
]}

Medvedeva, S. S. ^{[1
]}

Gerval'd, A. Yu. ^{[1
]}

Prokopov, N. I. ^{[1
]}

Plutalova, A. V. ^{[2
]}

Kulichikhin, V. G. ^{[3
]}

Chernikova, E. V. ^{[2
,3
]}

机构：

[1] Russian Technol Univ, MIREA Lomonosov Inst Fine Chem Technol, Moscow 119571, Russia

[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[3] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia

来源：

POLYMER SCIENCE SERIES B | 2022年 / 64卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

DEGRADATION PROCESSES; THERMAL-BEHAVIOR; CELLULOSE; COPOLYMERS; PHOTOLYSIS; MORPHOLINE; OXIDATION; ALDEHYDES; SOLVENTS; NMMO;

D O I：

10.1134/S1560090422700439

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Radical polymerization of acrylonitrile in the presence of N-methylmorpholine N-oxide has been performed for the first time. It has been shown that the presence of N-methylmorpholine N-oxide leads to the decrease in the molecular mass of the polymer and induces its partial cyclization. These features have been preserved when N-methylmorpholine N-oxide has been introduced in the polymerization simultaneously with the monomer and the initiator as well as when it has been added at high conversion of the monomer. The introduction of N-methylmorpholine N-oxide into polyacrylonitrile has led to the cyclization of the nitrile units in two stages, the low-temperature one being initiated by N-methylmorpholine N-oxide and the high-temperature one, typical of pure polyacrylonitrile. The ratio between the intensity of these processes has been governed by the content of N-methylmorpholine N-oxide.

引用

页码：623 / 635

页数：13

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