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Updated: Jun 12, 2026

The Preparation and Properties of Thermo-reversibly Cross-linked Rubber Via Diels-Alder Chemistry
Published on: August 25, 2016
[Total analysis of organic rubber additives]
Wen-Xuan He1, Shanks Robert, Ye-Ming You
1Department of Chemistry and Chemical Engineering, Minjiang University, Fuzhou 350108, China. accesshwx@yahoo.com.cn
This study identifies organic additives in ethylene-propylene rubber using chromatography and spectroscopy. The methods successfully detected softeners, curing agents, accelerators, and anti-agers for quality control.
Area of Science:
- Polymer Chemistry
- Analytical Chemistry
Context:
- Ethylene-propylene rubber (EPM) is widely used but its additive composition requires precise analysis.
- Identifying organic additives is crucial for understanding EPM performance and degradation.
Purpose:
- To establish a comprehensive analytical method for identifying various organic additives in ethylene-propylene rubber.
- To validate the effectiveness of combined chromatographic and spectroscopic techniques for additive analysis.
Summary:
- Middle pressure liquid chromatography (MPLC) with positive and reversed-phase conditions separated additives.
- Gas chromatography-mass spectrometry (GC/MS) and Curie point-mass spectrometry (CEMS) were employed for identification.
- Key additives identified include softeners (fuel oil, plant oil, phthalate), curing agent (benzoyl peroxide), accelerators (2-mercaptobenzothiazole, thiurams), and anti-agers (hindered phenols).
Impact:
- The developed analytical strategy enables accurate identification of multiple organic additives in EPM.
- This methodology can be extended to analyze additive compositions in other rubber systems.
- Provides a foundation for quality control and material characterization in the rubber industry.
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