Synthesis of linear and three-arm star tert-chlorine-telechelic polyisobutylenes by a two-step conventional laboratory process

Jesper Feldthusen, B. Iván, Axel H E Müller, Jørgen Kops

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A two-step conventional laboratory process was developed for the synthesis of mono-and difunctional linear and three-arm star tert-chlorine-telechelic polyisobutylenes (PIB) with desired molecular weights (MW) and narrow molecular weight distribution (MWD) by living carbocationic polymerization (LCCP). This polymerization method applies easy to handle operations and chemicals. LCCP of isobutylene (IB) was carried out in CH2Cl2 as solvent and with BCl3 as coinitiator in the first step to obtain soluble low MW PIB prepolymer with narrow MWD. This was followed by addition of hexane, TiCl4 and additional monomer in the second step to prepare PIBs with desired MW and narrow MWD in practically any suitable MW region. Comparison of the one-step and two-step processes is also described.

Original languageEnglish
Pages (from-to)417-425
Number of pages9
JournalMacromolecular Rapid Communications
Volume18
Issue number5
Publication statusPublished - May 1997

Fingerprint

Chlorine
Stars
Molecular weight distribution
Molecular weight
Living polymerization
Hexanes
Hexane
Monomers
Polymerization

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Synthesis of linear and three-arm star tert-chlorine-telechelic polyisobutylenes by a two-step conventional laboratory process. / Feldthusen, Jesper; Iván, B.; Müller, Axel H E; Kops, Jørgen.

In: Macromolecular Rapid Communications, Vol. 18, No. 5, 05.1997, p. 417-425.

Research output: Contribution to journalArticle

@article{ecaf5fe2737d4cd38608011c827aa560,
title = "Synthesis of linear and three-arm star tert-chlorine-telechelic polyisobutylenes by a two-step conventional laboratory process",
abstract = "A two-step conventional laboratory process was developed for the synthesis of mono-and difunctional linear and three-arm star tert-chlorine-telechelic polyisobutylenes (PIB) with desired molecular weights (MW) and narrow molecular weight distribution (MWD) by living carbocationic polymerization (LCCP). This polymerization method applies easy to handle operations and chemicals. LCCP of isobutylene (IB) was carried out in CH2Cl2 as solvent and with BCl3 as coinitiator in the first step to obtain soluble low MW PIB prepolymer with narrow MWD. This was followed by addition of hexane, TiCl4 and additional monomer in the second step to prepare PIBs with desired MW and narrow MWD in practically any suitable MW region. Comparison of the one-step and two-step processes is also described.",
author = "Jesper Feldthusen and B. Iv{\'a}n and M{\"u}ller, {Axel H E} and J{\o}rgen Kops",
year = "1997",
month = "5",
language = "English",
volume = "18",
pages = "417--425",
journal = "Macromolecular Rapid Communications",
issn = "1022-1336",
publisher = "Wiley-VCH Verlag",
number = "5",

}

TY - JOUR

T1 - Synthesis of linear and three-arm star tert-chlorine-telechelic polyisobutylenes by a two-step conventional laboratory process

AU - Feldthusen, Jesper

AU - Iván, B.

AU - Müller, Axel H E

AU - Kops, Jørgen

PY - 1997/5

Y1 - 1997/5

N2 - A two-step conventional laboratory process was developed for the synthesis of mono-and difunctional linear and three-arm star tert-chlorine-telechelic polyisobutylenes (PIB) with desired molecular weights (MW) and narrow molecular weight distribution (MWD) by living carbocationic polymerization (LCCP). This polymerization method applies easy to handle operations and chemicals. LCCP of isobutylene (IB) was carried out in CH2Cl2 as solvent and with BCl3 as coinitiator in the first step to obtain soluble low MW PIB prepolymer with narrow MWD. This was followed by addition of hexane, TiCl4 and additional monomer in the second step to prepare PIBs with desired MW and narrow MWD in practically any suitable MW region. Comparison of the one-step and two-step processes is also described.

AB - A two-step conventional laboratory process was developed for the synthesis of mono-and difunctional linear and three-arm star tert-chlorine-telechelic polyisobutylenes (PIB) with desired molecular weights (MW) and narrow molecular weight distribution (MWD) by living carbocationic polymerization (LCCP). This polymerization method applies easy to handle operations and chemicals. LCCP of isobutylene (IB) was carried out in CH2Cl2 as solvent and with BCl3 as coinitiator in the first step to obtain soluble low MW PIB prepolymer with narrow MWD. This was followed by addition of hexane, TiCl4 and additional monomer in the second step to prepare PIBs with desired MW and narrow MWD in practically any suitable MW region. Comparison of the one-step and two-step processes is also described.

UR - http://www.scopus.com/inward/record.url?scp=0642305097&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0642305097&partnerID=8YFLogxK

M3 - Article

VL - 18

SP - 417

EP - 425

JO - Macromolecular Rapid Communications

JF - Macromolecular Rapid Communications

SN - 1022-1336

IS - 5

ER -