SAMPLE THICKNESS AND STRUCTURAL CHANGES IN THERMO-OXIDATIVE DEGRADATION OF POLYBUTADIENE

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ZIAEE F.; SHOUSHTARI ZADE A.

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Paper Information

Journal: Iranian Journal of Polymer Science and Technology Year:2011 | Volume:24 | Issue:2 (ISSUE NO. 112) Page(s): 93-99

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Information Journal Paper

Title

SAMPLE THICKNESS AND STRUCTURAL CHANGES IN THERMO-OXIDATIVE DEGRADATION OF POLYBUTADIENE

Author(s)

ZIAEE F. | SHOUSHTARI ZADE A. | Issue Writer Certificate

Keywords

POLYBUTADIENEQ3

DSCQ2

OXIDATIVE NMRQ2

THERMO DEGRADATIONQ2

EPOXIDE GROUPQ2

Abstract

The thermo-oxidative degradation of two viscous liquid resins of 1, 2- POLYBUTADIENE (1, 2-PBD) and 1, 4- POLYBUTADIENE (1, 4-PBD) have been studied by differential scanning calorimetry (DSC) and thermogravimetry analysis (TGA). To study further, the effect of film thickness on oxidation kinetics was periodically studied by tracing the weight of the samples to make comparison with DSC results at constant temperature of 100oC under atmospheric pressure. Finally, the structural changes of 1, 4-PBD were investigated by carbon-13 nuclear magnetic resonance spectroscopy (13C NMR). The results from 13C NMR from 1, 4-PBD show that after heat treatment new carbon peaks are obtained for an epoxide carbon at 58.6 ppm, an adjacent methylene carbon of EPOXIDE GROUP at 24.0 ppm and a peroxide methine carbon group at 86.7 ppm. The results from TGA and DSC studies conclude that 1, 2- PBD do not age due to its structure. The results from NMR spectroscopy indicate that besides structural changes, increase in mass is due to radical addition to double bond while, EPOXIDE GROUPs are one of major products of thermal oxidation which can be identified from their 13C NMR peaks.

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APA: Copy

ZIAEE, F., & SHOUSHTARI ZADE, A.. (2011). SAMPLE THICKNESS AND STRUCTURAL CHANGES IN THERMO-OXIDATIVE DEGRADATION OF POLYBUTADIENE. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 24(2 (ISSUE NO. 112)), 93-99. SID. https://sid.ir/paper/6228/en

Vancouver: Copy

ZIAEE F., SHOUSHTARI ZADE A.. SAMPLE THICKNESS AND STRUCTURAL CHANGES IN THERMO-OXIDATIVE DEGRADATION OF POLYBUTADIENE. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2011;24(2 (ISSUE NO. 112)):93-99. Available from: https://sid.ir/paper/6228/en

IEEE: Copy

F. ZIAEE, and A. SHOUSHTARI ZADE, “SAMPLE THICKNESS AND STRUCTURAL CHANGES IN THERMO-OXIDATIVE DEGRADATION OF POLYBUTADIENE,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 24, no. 2 (ISSUE NO. 112), pp. 93–99, 2011, [Online]. Available: https://sid.ir/paper/6228/en

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