Telechelic polyisobutylene with unsaturated end groups and with anhydride end groups

E. Walch, E. Walch, R.J. Gaymans

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)
91 Downloads (Pure)

Abstract

Anhydride terminated polyisobutylene (PIB) oligomers were synthesized in a one- or two-step process from chlorine terminated oligomers. In the one-step process, chlorine functional oligomers were just heated in the presence of maleic anhydride (MA) for 12 h at 190°C without a catalyst. In the two-step process, the chlorine end functional groups were first converted by selective dehydrochlorination to isopropenylpoly-isobutylene end groups with t-BuOK in refluxing tetrahydrofuran during 16 h. In a second step, MA was coupled to the PIB with unsaturated end groups by reacting the oligomer with MA for 12 h at 190°C. These reactions could be followed by i.r. and n.m.r. The PIB-MA obtained had a functionality between 30% and 100%. In order to study the formation of amine functionalities, the PIB-MA was reacted with diamines. The coupling gave an imide bonding.
Original languageUndefined
Pages (from-to)1774-1778
JournalPolymer
Volume35
Issue number35
DOIs
Publication statusPublished - 1994

Keywords

  • METIS-105308
  • IR-9729

Cite this