Reactivity of norbornene esters in ring-opening metathesis polymerization initiated by a N-chelating Hoveyda II type catalyst

Reactivity of norbornene esters in ring-opening metathesis polymerization initiated by a N-chelating Hoveyda II type catalyst

Bibliographic Details
Parent link:RSC Advances.— , 2011-
Vol. 6, iss. 7.— 2016.— [P. 5177-5183]
Corporate Author: Национальный исследовательский Томский политехнический университет Институт природных ресурсов Кафедра технологии органических веществ и полимерных материалов
Other Authors: Kiselev S. A. Stanislav Andreevich, Lenev D. A. Denis Alekseevich, Lyapkov A. A. Aleksey Alekseevich, Semakin S. V. Semen Vladimirovich, Bozhenkova G. S. Galina Sergeevna, Verpoort F. V. K. Frensis Valter Kornelius, Ashirov R. V. Roman Vitaljevich
Summary:Title screen
The reactivity and activation parameters for the ring-opening metathesis polymerization of eight norbornene esters in the presence of a N-chelating Hoveyda–Grubbs II type catalyst were determined using in situ 1H-NMR. The ester molecules differ in the structure of substituent and the location of ester groups. Kinetic studies have shown that effective polymerization constants and activation parameters highly depend on the monomer structures. It was demonstrated that the elongation of the aliphatic chain does not significantly affect the reactivity of the ester, but has a high impact on the activation parameters of the reaction. Branching of the aliphatic substituent has a significant influence on the reactivity and activation parameters. Furthermore, the orientation of the ester substituents in the norbornene ring substantially affects the activation parameters.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2016
Subjects:
электронный ресурс
труды учёных ТПУ
Online Access:http://dx.doi.org/10.1039/C5RA25197D
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650898
Description
Summary:Title screen
The reactivity and activation parameters for the ring-opening metathesis polymerization of eight norbornene esters in the presence of a N-chelating Hoveyda–Grubbs II type catalyst were determined using in situ 1H-NMR. The ester molecules differ in the structure of substituent and the location of ester groups. Kinetic studies have shown that effective polymerization constants and activation parameters highly depend on the monomer structures. It was demonstrated that the elongation of the aliphatic chain does not significantly affect the reactivity of the ester, but has a high impact on the activation parameters of the reaction. Branching of the aliphatic substituent has a significant influence on the reactivity and activation parameters. Furthermore, the orientation of the ester substituents in the norbornene ring substantially affects the activation parameters.
Режим доступа: по договору с организацией-держателем ресурса
DOI:10.1039/C5RA25197D

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