The synthesis of ultra-high molecular weight poly(1-hexene)s by low-temperature Ziegler-Natta precipitation polymerization in fluorous reaction media
Andrey V. Shlyakhtin
1
,
Alexander N. Tavtorkin
2
,
Sofia A Korchagina
2
,
Maria S Chinova
2
,
Alexey A. Vinogradov
2
,
Alexander A Vinogradov
2
,
Dolgor D Khaidapova
4
,
Тип публикации: Journal Article
Дата публикации: 2018-03-01
scimago Q1
wos Q2
БС1
SJR: 0.843
CiteScore: 7.7
Impact factor: 4.5
ISSN: 00323861, 18732291
Materials Chemistry
Organic Chemistry
Polymers and Plastics
Краткое описание
Abstract An effective method of 1-hexene polymerization in fluorous reaction media has been developed. When using perfluorinated compounds (FCs) as a solvent, the process, catalyzed by highly active titanium-magnesium catalysts modified with 3,3-bis(methoxymethyl)pentane (BMMP) as an electron-donor, proceeds as a precipitation polymerization, and the reaction products represent highly stereo- and regioregular poly(1-hexene)s in the form of microparticles. In freons, polymerization can be carried out at sub-zero temperatures with monomer conversion up to 50% within 1 h and the formation of UHMW poly(1-hexene)s with Mn ∼2·106 Da. The polymers prepared in FCs demonstrate a high drag reducing effect (up to 40% in n-heptane for 0.25 ppm concentration), exceeding the previously described UHMW poly(1-hexene)s. Polymerization products after mixing with rapeseed oil form stable dispersions of ready-to-use drag reducing agents (DRAs) for pipeline oil transportation.
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Nifant'ev I. E. et al. The synthesis of ultra-high molecular weight poly(1-hexene)s by low-temperature Ziegler-Natta precipitation polymerization in fluorous reaction media // Polymer. 2018. Vol. 139. pp. 98-106.
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Nifant'ev I. E., Shlyakhtin A. V., Tavtorkin A. N., Korchagina S. A., Chinova M. S., Vinogradov A. A., Vinogradov A. A., Roznyatovsky V. A., Khaidapova D. D., Ivchenko P. V. The synthesis of ultra-high molecular weight poly(1-hexene)s by low-temperature Ziegler-Natta precipitation polymerization in fluorous reaction media // Polymer. 2018. Vol. 139. pp. 98-106.
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TY - JOUR
DO - 10.1016/j.polymer.2018.02.011
UR - https://linkinghub.elsevier.com/retrieve/pii/S0032386118301277
TI - The synthesis of ultra-high molecular weight poly(1-hexene)s by low-temperature Ziegler-Natta precipitation polymerization in fluorous reaction media
T2 - Polymer
AU - Nifant'ev, Ilya E.
AU - Shlyakhtin, Andrey V.
AU - Tavtorkin, Alexander N.
AU - Korchagina, Sofia A
AU - Chinova, Maria S
AU - Vinogradov, Alexey A.
AU - Vinogradov, Alexander A
AU - Roznyatovsky, Vitaly A
AU - Khaidapova, Dolgor D
AU - Ivchenko, Pavel V
PY - 2018
DA - 2018/03/01
PB - Elsevier
SP - 98-106
VL - 139
SN - 0032-3861
SN - 1873-2291
ER -
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@article{2018_Nifant'ev,
author = {Ilya E. Nifant'ev and Andrey V. Shlyakhtin and Alexander N. Tavtorkin and Sofia A Korchagina and Maria S Chinova and Alexey A. Vinogradov and Alexander A Vinogradov and Vitaly A Roznyatovsky and Dolgor D Khaidapova and Pavel V Ivchenko},
title = {The synthesis of ultra-high molecular weight poly(1-hexene)s by low-temperature Ziegler-Natta precipitation polymerization in fluorous reaction media},
journal = {Polymer},
year = {2018},
volume = {139},
publisher = {Elsevier},
month = {mar},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0032386118301277},
pages = {98--106},
doi = {10.1016/j.polymer.2018.02.011}
}