DSC study of antioxidant activity of selected p-phenylenediamines in styrene-butadiene rubber

被引：28

作者：

Cibulkova, Zuzana ^{[1
]}

Simon, P. ^{[1
]}

Lehocky, P. ^{[2
]}

Kosar, K. ^{[2
]}

Chochulova, A. ^{[1
]}

机构：

[1] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Chem Phys, Bratislava 81237, Slovakia

[2] Res Inst Chem Technol, Bratislava 83603, Slovakia

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2009年 / 97卷 / 02期

关键词：

antioxidant effectiveness; antioxidants; DSC; induction periods; oxidation; protection factor; N; '-substituted; p-phenylenediamines; styrenebutadiene rubber; INDUCTION PERIOD;

D O I：

10.1007/s10973-008-9628-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The antioxidant activity of selected N,N'-substituted p-phenylenediamines (PPDs) in styrene-butadiene rubber (SBR) has been studied by differential scanning calorimetry under non-isothermal conditions. The kinetic parameters describing temperature dependence of induction period have been obtained. Protection factors and antioxidant effectiveness have been calculated to characterize the stabilizing effect of the antioxidants under study. It is shown that all antioxidants under study exhibit stabilizing effect on SBR. The obtained values were used to compare the stabilizing effect of the same antioxidants in polyisoprene (PI) rubber. The order of stability for SBR matrix samples differs from that for PI samples. It is shown that the stabilization effect of the antioxidant depends much on the polymer matrix.

引用

页码：535 / 540

页数：6

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