“110th Anniversary:” Interactions of Bis(1-methyl-1-phenylethyl) Peroxide with the Secondary Antioxidant Bis(octadecyloxycarbonylethyl) Sulfide: Mechanistic Studies Conducted in Dodecane as a Model System for Polyethylene,Industrial & Engineering Chemistry Research

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“110th Anniversary:” Interactions of Bis(1-methyl-1-phenylethyl) Peroxide with the Secondary Antioxidant Bis(octadecyloxycarbonylethyl) Sulfide: Mechanistic Studies Conducted in Dodecane as a Model System for Polyethylene
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-07-18 , DOI: 10.1021/acs.iecr.9b02344
Sarath C. Sarngadharan ₁ , Fiaz Mohammed _{2,

3} , Mark Conley _{2,

3} , Harris Eldridge ₂ , Yusra Anwar ₂ , Derek Nursey ₂ , Jonathan Faris ₂ , Maryellen Malone ₂ , Jeffrey M. Cogen ₄ , Bharat I. Chaudhary ₄ , Charles A. Eckert _{1,

2,

3} , Pamela Pollet _{1,

3} , Charles L. Liotta _{1,

2,

3}

Affiliation

Cross-linked polyethylene (XLPE) is an important class of materials with critical applications including pipes and high voltage electric cables. An organic peroxide such as bis(1-methyl-1-phenylethyl) peroxide (BMPEP) is a commonly used radical initiator in the cross-linking process along with a secondary antioxidant such as bis(octadecyloxycarbonylethyl) sulfide (BOCES). Herein is described a detailed investigation into the complex interactions of the radical initiator BMPEP and the secondary antioxidant BOCES in dodecane solvent–a model for the polyethylene polymer. Kinetic and spectroscopic experiments along with DFT calculations provide the foundation for a detailed mechanistic description for the roles of BMPEP, BOCES, atmospheric oxygen, and trace amounts of water in the overall process.

中文翻译：

“ 110周年：”双（1-甲基-1-苯基乙基）过氧化物与第二抗氧化剂双（十八烷基氧羰基乙基）硫化物的相互作用：在十二烷中作为聚乙烯的模型系统进行的机理研究

交联聚乙烯（XLPE）是一类重要的材料，在包括管道和高压电缆在内的关键应用中得到应用。有机过氧化物，例如双（1-甲基-1-苯基乙基）过氧化物（BMPEP）与第二抗氧化剂，例如双（十八烷基氧羰基乙基）硫化物（BOCES），是交联过程中常用的自由基引发剂。本文描述了对自由基引发剂BMPEP和仲抗氧化剂BOCES在十二烷溶剂中的复杂相互作用的详细研究，该模型是聚乙烯聚合物的模型。动力学和光谱实验以及DFT计算为详细描述BMPEP，BOCES，大气中的氧气和微量水在整个过程中的作用提供了基础。

更新日期：2019-07-18

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