Recent advances in catalytic chain transfer polymerization of isobutylene: a review

T Rajasekhar, G Singh, GS Kapur, SSV Ramakumar - RSC advances, 2020 - pubs.rsc.org
This review presents the development of highly reactive polyisobutylene (HRPIB), a major
commercial intermediate toward fuel and lubricant additives. Recent years have witnessed …

A bibliometric survey on polyisobutylene manufacture

JB Alves, MK Vasconcelos, LHR Mangia, M Tatagiba… - Processes, 2021 - mdpi.com
Polyisobutylenes (PIB) constitute a versatile family of polymer materials that have been used
mainly as fuel and lubricant additives. Particularly, the current commercial demand for highly …

Homogeneous and heterogeneous catalysts for the synthesis of highly reactive polyisobutylene: discovery, development and perspectives

IV Vasilenko, SV Kostjuk - Journal of Macromolecular Science, Part …, 2021 - Taylor & Francis
In this article, the current state and future perspectives in the application of complexes of
Lewis acids with ethers in the synthesis of highly reactive polyisobutylene (HR PIB) were …

Cationic polymerization of isobutylene co-initiated by chloroferrate imidazole-based ionic liquid: The advantageous effect of initiator and aromatic compounds

IA Berezianko, IV Vasilenko, SV Kostjuk - European Polymer Journal, 2019 - Elsevier
The effect of different initiators (tert-butyl chloride (t-BuCl) and 2-chloro-2-phenylpropane
(CumCl) on the cationic polymerization of isobutylene co-initiated by acidic chloroferrate …

Polyisobutylenes with Controlled Molecular Weight and Chain-End Structure: Synthesis and Actual Applications

IE Nifant'ev, SA Korchagina, MS Chinova, AN Tavtorkin - Polymers, 2023 - mdpi.com
The polymerization of isobutylene allows us to obtain a wide spectrum of polyisobutylenes
(PIBs) which differ in their molecular weight characteristics and the chemical structure of …

Synthesis of highly reactive polyisobutylenes via cationic polymerization in ionic liquids: characteristics and mechanism

X Li, Y Wu, J Zhang, S Li, M Zhang, D Yang… - Polymer …, 2019 - pubs.rsc.org
The cationic polymerization of isobutylene (IB) was systematically studied in a 1-butyl-3-
methylimidazolium hexafluorophosphate ([Bmim][PF6]) ionic liquid at− 10° C. Different …

Statistical kinetic modeling procedure for cationic polymerization and its application to polyisobutylene

SH Shim, J Choi, S Lee, JH Lee - AIChE Journal, 2023 - Wiley Online Library
A statistical modeling procedure is established for carbocation polymerization with the
characteristics of living with chain transfer. A single state model is suggested for cases of …

Cationic Polymerization of Isobutylene and C4 Mixed Feed Using Complexes of Lewis Acids with Ethers: A Comparative Study

DI Shiman, IA Berezianko, IV Vasilenko… - Chinese Journal of …, 2019 - Springer
The cationic polymerization of C 4 mixed feed and isobutylene co-initiated by AlCl 3× O i Pt
2, i BuAlCl 2× n O i Pr 2, and [emim] Cl-FeCl 3× n O i Pr 2 ([emim] Cl: 1-ethyl-3 …

Synthesis of comb‐like dispersants and a study on the effect of dispersant architecture and carbon black dispersion

TP Holbrook, GM Masson… - Journal of Polymer …, 2019 - Wiley Online Library
Comb dispersants suitable for stabilization of carbonaceous deposits found in automotive
lubricating oils were derived from the copolymerization of vinyl‐ether terminated …

Alkoxy aluminum chlorides in the cationic polymerization of isobutylene: A co-initiator, carbocation stabilizer and chain-transfer agent

DI Shiman, IV Vasilenko, SV Kostjuk - Polymer Chemistry, 2019 - pubs.rsc.org
Alkoxy aluminum chlorides are efficient catalysts for the preparation of well-defined exo-
olefin terminated PIBs of low (Mn∼ 1000 g mol− 1) to medium (Mn up to 50 000 g mol− 1) …