Related Experiment Video
Updated: Feb 14, 2026

Synthesis of Ligand-free CdS Nanoparticles within a Sulfur Copolymer Matrix
Published on: May 1, 2016
Synthesis, Characterization, and Performance Evaluation of Sulfur-Containing Diphenylamines Based on Intramolecular
Jun-Bo He1, Hao Shi2, Yue Wang3
1Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, College of Food Science & Engineering, Wuhan Polytechnic University, Wuhan 430023, China. junb112he@whpu.edu.cn.
Abstract:
To obtain novel structural antioxidants that have different antioxidant mechanisms, four 2-(alkylthio)-N-(4-(phenylamino)phenyl)acetamides 2a-d as dual functional antioxidants are designed, synthesized, and confirmed by ¹H-NMR, FTIR, MS, and elemental analysis. The antioxidant behavior of compounds 2a-d as additives of base oil triisodecyl trimellitate (TIDTM) is evaluated by non-isothermal and isothermal DSC analyses. The results showed all compounds can greatly increase the incipient oxidation temperature (IOT) and oxidation induction time (OIT) of TIDTM, especially, compound 2c exhibited an OIT value of 72.5 min at 230 °C, which is almost 28 times the length of TIDTM. Moreover, compounds 2a-d do not affect the tribological performance of TIDTM. The mechanism of antioxidants involved an intramolecular synergism are proposed. This work demonstrates compound 2c can be used as a novel potential antioxidant additive of TIDTM; in addition, it would inspire the emergence of highly potent antioxidants with different antioxidant mechanisms.
Related Concept Videos
Intermolecular vs Intramolecular Forces
The Sulfur Cycle
Sulfur Assimilation
Intramolecular Aldol Reaction
Combined Effects of Drugs: Synergism
Such synergistic combinations...
Radical Reactivity: Intramolecular vs Intermolecular

