乙烯系单体自由基聚合的阻聚效应 Ⅹ.羟胺类化合物对苯乙烯自由基聚合的阻聚及历程

张自义; 李兆陇; 王晓艳; 吕志珍; 汪汉卿; 冯良波

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乙烯系单体自由基聚合的阻聚效应 Ⅹ.羟胺类化合物对苯乙烯自由基聚合的阻聚及历程

研究简报 | 更新时间：2021-03-19

- 乙烯系单体自由基聚合的阻聚效应 Ⅹ.羟胺类化合物对苯乙烯自由基聚合的阻聚及历程
- INHIBITING EFFECTS OF RADICAL POLYMERIZATION OF VINYL MONOMERS X.Studies on the Inhibition and Its Mechanism of Hydroxylamines Compounds in Free Radical Polymerization of Styrene
- 高分子学报 1990年第2期页码：233-238
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- 纸质出版日期：1990-4-20，
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张自义, 李兆陇, 王晓艳, 吕志珍, 汪汉卿, 冯良波. 乙烯系单体自由基聚合的阻聚效应 Ⅹ.羟胺类化合物对苯乙烯自由基聚合的阻聚及历程[J]. 高分子学报, 1990,(2):233-238.

Zhang Zi-yi, LI Zhao-long, WANG Xiao-yan, LU Zhi-zhen, WANG Han-qing, FENG Liang-bo. INHIBITING EFFECTS OF RADICAL POLYMERIZATION OF VINYL MONOMERS X.Studies on the Inhibition and Its Mechanism of Hydroxylamines Compounds in Free Radical Polymerization of Styrene[J]. Acta Polymerica Sinica, 1990,(2):233-238.
张自义, 李兆陇, 王晓艳, 吕志珍, 汪汉卿, 冯良波. 乙烯系单体自由基聚合的阻聚效应 Ⅹ.羟胺类化合物对苯乙烯自由基聚合的阻聚及历程[J]. 高分子学报, 1990,(2):233-238. DOI：

Zhang Zi-yi, LI Zhao-long, WANG Xiao-yan, LU Zhi-zhen, WANG Han-qing, FENG Liang-bo. INHIBITING EFFECTS OF RADICAL POLYMERIZATION OF VINYL MONOMERS X.Studies on the Inhibition and Its Mechanism of Hydroxylamines Compounds in Free Radical Polymerization of Styrene[J]. Acta Polymerica Sinica, 1990,(2):233-238. DOI：

摘要

Abstract

The inhibiting effects of N

N'-diethydroxylamine(DEHA)

N'-diisopropylhydroxylamine (DIPHA)

6-tetramethyl-4-hydroxyl-piperidinhydroxylarnine (TMHPHA)

4-hydroxyl-morpholine(MPHA)

N-phenylhydroxylamine(PHA) and N

N'-diphenylhydroxylamine (DPHA)

on the AIBN-initiated

bulk polymerization of styrene(St) have been studied by dilatomatric method. The inductive period of polymerization(ti)

the rate of propagating after the ti(Rp)

the MW of polystyrene (Mn) the retardating coefficient (K) and the inhibi-ting factor (F) have been obtained. The results reveal that R2NOH have been proved to be very efficient inhibitors and their inhibiting efficiency have been found to depend on the rate and stability of the nitroxide radical formed in reaction. Relative inhibiting reactiveties of several R2NOH have been determined as in the following order; DEHA>TMHPHA>DPHA>DIPHA>MPHA. Other stable nitroxides formed in polymerization of St inthe pre-sence of several R2NOH have also been indentified by ESR and mechanism of inhibition and retardation has been discussed.

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自由基聚合阻聚羟胺苯乙烯

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