Исследование кинетики полимеризации этилена в присутствии катализаторов на основе бис (имино) пиридиновых комплексов Fe, Co и Cr по данным о числе активных центров и константах скорости роста
Диссертация
Цель настоящей работы состоит в получении данных о степени использования активного компонента и реакционной способности активных центров (значения Ср и кр) для гомогенных катализаторов LFeCl2, LC0CI2 (L: 2,6-(2,6-(Ме)2СбНзК=СМе)2С5НзЫ) и L СгС13 (L: 2,6-(2,4,6-(Me)3C6H2N=CMe)2C5H3N), а также нанесенных катализаторов LFeCl2/Al203, LFeCl2/Si02, LFeCl2/MgCl2, LCoCl2/Si02 (L… Читать ещё >
Содержание
- Глава 1. Литературный обзор
- 1. 1. Гомогенные катализаторы на основе бис (имино)пиридиновых комплексов Fe,
- Со, Сг и V
- 1. 1. 1. Синтез и строение бис (имино)пиридиновых комплексов Fe, Со, Сг и V
- 1. 1. 2. Влияние строения комплекса и активатора на активность катализатора и свойства получаемого полиэтилена
- 1. 1. 3. Влияние условий полимеризации на активность катализатора и свойства получаемого полиэтилена
- 1. 1. 4. Сополимеризация этилена с а-олефинами и полярными мономерами на бис (имино)пиридиновых комплексах
- 1. 1. 5. Физико-химические исследования активного компонента бис (имино)пиридиновых комплексов металлов
- 1. 1. 6. Теоретические исследования бис (имино)пиридиновых катализаторов
- 1. 2. Нанесенные катализаторы на основе бис (имино)пиридиновых комплексов Fe,
- Со, СгиУ
- 1. 3. Методы определения числа активных центров и констант скорости роста
- 1. 3. 1. Кинетические методы
- 1. 3. 2. Метод ингибирования
- 1. 3. 3. Методы меченых катализаторов
- 1. 3. 4. Метод радиоактивных ингибиторов
- 1. 3. 5. Значения Ср и кр для различных катализаторов полимеризации по литературным данным
- Глава 2. Методика эксперимента
- 2. 1. Исходные вещества и реагенты
- 2. 2. Компоненты каталитической системы
- 2. 3. Полимеризация этилена
- 2. 4. Методика опытов с применением 14СО
- 2. 5. Измерение молекулярно-массовых характеристик ПЭ
- Глава 3. Гомогенные катализаторы на основе бис (имино)пиридиновых комплексов Fe, СоиСг
- 3. 1. Данные о кинетике полимеризации этилена на гомогенных катализаторах
- 3. 2. Влияние времени полимеризации на Ср и кр
- 3. 3. Влияние времени полимеризации на молекулярно-массовые характеристики получаемого ПЭ
- 3. 4. Влияние температуры полимеризации на число активных центров, константу скорости роста и свойства ПЭ, получаемого на катализаторе Ь*СгС1з+А1(ьВи)з
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