Abstract
The polymerization process of dicyclopentadiene using a multicomponent catalytic system based on bis(cyclopentadienyl)titanium dichloride and diethylaluminum chloride was studied. It was demonstrated that the application of an excess of the aluminum component leads to the formation of stable charged complexes of blue discoloration, which initiate cationic polymerization of dicyclopentadiene. Unstabilized thin layers of obtained polydicyclopentadiene undergo oxidation and structuring under atmospheric oxygen. Oxidation of polydicyclopentadiene films in air occurs slowly during several weeks and can be determined by the increase of carbonyl and hydroxyl adsorption bands in infrared spectra. Along with oxidation, cross-linking processes occur in polymers, which lead to a change in physical parameters of the layers, and more precisely to a decrease in the permeability of atmospheric oxygen through the layers. Consequently, this leads to the transition of the oxidation from a kinetic mode into a diffusive mode. Such structural changes do not occur in a polymer that was stabilized by adding an antioxidant.
| Original language | English |
|---|---|
| Pages (from-to) | 733-745 |
| Number of pages | 13 |
| Journal | Beilstein Journal of Organic Chemistry |
| Volume | 15 |
| DOIs | |
| Publication status | Published - 20 Mar 2019 |
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Keywords
- Bis(cyclopentadienyl)titanium dichloride
- Cationic polymerization
- Oxidation
- Polydicyclopentadiene
- Thin layers
ASJC Scopus subject areas
- Organic Chemistry
Cite this
Synthesis of polydicyclopentadiene using the Cp 2 TiCl 2 / Et 2 AlCl catalytic system and thin-layer oxidation of the polymer in air. / Bazarova, Zhargolma B.; Soroka, Ludmila S.; Lyapkov, Alex A.; Yusubov, Mekhman S.; Verpoort, Francis.
In: Beilstein Journal of Organic Chemistry, Vol. 15, 20.03.2019, p. 733-745.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis of polydicyclopentadiene using the Cp 2 TiCl 2 / Et 2 AlCl catalytic system and thin-layer oxidation of the polymer in air
AU - Bazarova, Zhargolma B.
AU - Soroka, Ludmila S.
AU - Lyapkov, Alex A.
AU - Yusubov, Mekhman S.
AU - Verpoort, Francis
PY - 2019/3/20
Y1 - 2019/3/20
N2 - The polymerization process of dicyclopentadiene using a multicomponent catalytic system based on bis(cyclopentadienyl)titanium dichloride and diethylaluminum chloride was studied. It was demonstrated that the application of an excess of the aluminum component leads to the formation of stable charged complexes of blue discoloration, which initiate cationic polymerization of dicyclopentadiene. Unstabilized thin layers of obtained polydicyclopentadiene undergo oxidation and structuring under atmospheric oxygen. Oxidation of polydicyclopentadiene films in air occurs slowly during several weeks and can be determined by the increase of carbonyl and hydroxyl adsorption bands in infrared spectra. Along with oxidation, cross-linking processes occur in polymers, which lead to a change in physical parameters of the layers, and more precisely to a decrease in the permeability of atmospheric oxygen through the layers. Consequently, this leads to the transition of the oxidation from a kinetic mode into a diffusive mode. Such structural changes do not occur in a polymer that was stabilized by adding an antioxidant.
AB - The polymerization process of dicyclopentadiene using a multicomponent catalytic system based on bis(cyclopentadienyl)titanium dichloride and diethylaluminum chloride was studied. It was demonstrated that the application of an excess of the aluminum component leads to the formation of stable charged complexes of blue discoloration, which initiate cationic polymerization of dicyclopentadiene. Unstabilized thin layers of obtained polydicyclopentadiene undergo oxidation and structuring under atmospheric oxygen. Oxidation of polydicyclopentadiene films in air occurs slowly during several weeks and can be determined by the increase of carbonyl and hydroxyl adsorption bands in infrared spectra. Along with oxidation, cross-linking processes occur in polymers, which lead to a change in physical parameters of the layers, and more precisely to a decrease in the permeability of atmospheric oxygen through the layers. Consequently, this leads to the transition of the oxidation from a kinetic mode into a diffusive mode. Such structural changes do not occur in a polymer that was stabilized by adding an antioxidant.
KW - Bis(cyclopentadienyl)titanium dichloride
KW - Cationic polymerization
KW - Oxidation
KW - Polydicyclopentadiene
KW - Thin layers
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UR - http://www.scopus.com/inward/citedby.url?scp=85064212265&partnerID=8YFLogxK
U2 - 10.3762/bjoc.15.69
DO - 10.3762/bjoc.15.69
M3 - Article
AN - SCOPUS:85064212265
VL - 15
SP - 733
EP - 745
JO - Beilstein Journal of Organic Chemistry
JF - Beilstein Journal of Organic Chemistry
SN - 1860-5397
ER -