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Competition Between Saturated and Unsaturated Components for Reacting with Emerging 1:1 Adduct Radical... in Free-Radical Nonbranched-Chain Processes of Initiated Addition to Molecular C=C Bonds in Binary Systemsстатья
- Автор: Silaev Michael M.
- Журнал: Chemical Science & Engineering Research
- Том: 2
- Номер: 3
- Год издания: 2020
- Первая страница: 7
- Последняя страница: 11
- DOI: 10.36686/Ariviyal.CSER.2020.02.03.010
- Аннотация: The reaction scheme is suggested for the initiated nonbranched-chain addition of free radicals to the double bonds of the unsaturated compounds. The proposed scheme includes the reaction competing with chain propagation reactions through a reactive free radical. The chain evolution stage in this scheme involves three types of free radicals. One of them is relatively low-reactive and inhibits the chain process by shortening of the kinetic chain length. Based on the suggested scheme, four rate equations (containing one to three parameters to be determined directly) are deduced using quasi-steady-state treatment. These equations provide good fits for the nonmonotonic (peaking) dependences of the formation rates of the molecular products (1:1 adducts) on the concentration of the unsaturated component in binary systems consisting of a saturated component (hydrocarbon, alcohol, etc.) and an unsaturated component (alkene, allyl alcohol, etc.). The unsaturated compound in these systems is both a reactant and an autoinhibitor generating low-reactive free radicals. It is shown that a maximum in the studied experimental curves arises from the competition between saturated and unsaturated components for reacting with the emerging 1:1 adduct radical. Keywords: Binary System; Unsaturated Compound; Low-Reactive Radical; Autoinhibitor; Competing Reaction; Nonbranched-Chain Addition; Kinetic Equation; Rate; Parameters; Thermochemical Data; Energy.
- Добавил в систему: Силаев Михаил Михайлович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | The reaction scheme is suggested for the initiated nonbranched-chain addition of free radicals to the C=C bonds of the unsaturated compounds. It is shown that a maximum in the studied experimental curves arises from the competition between saturated and unsaturated components for reacting with the emerging 1:1 adduct radical. | M.M._Silaev_Chem._Sci._Engg._Res._2020_23_7-11_website.pdf | 504,7 КБ | 19 марта 2020 [SilaevMM] |