Diboranbasierte Metallfreie Katalysatorsysteme für die Herstellung von Isotaktisch Angereicherten Aliphatischen Polyethern, Zugehöriges Verfahren, aus dem Verfahren Erhaltener Polyether und Verwendung des Katalysatorsystems

Details

Veröffentlichungs-Nr.

EP4265666

Aktenzeichen

EP22169072

Anmeldetag

20. April 2022

Veröffentlichung

27. November 2024

Erteilung

27. November 2024

Rechtsraum

EP

IPC

C08G65/26

Abstract

A catalyst system for the synthesis of isotactic or isotactic-enriched polyethers (it-polyethers) from (substituted) epoxide monomers is described, which comprises an organobase component (BA) a diborane Lewis acid (LA) and a protic initiator (IN). The catalyst system is useful in a process for the production of it-polyethers by reacting an epoxide compound in the presence of catalyst system and has been shown to provide high, tuneable degrees of isotacticity (isotactic diad placement, %m). Notably, this setup can also be used to construct complex block copolymers containing it-polyether blocks and non-polyether blocks such as polyesters. The presented process is further characterized by well-available catalyst components and well-defined molar mass distributions (Ð_M).

Anmelder

Firma

Universität Stuttgart

Land

🇩🇪 Deutschland

Fachgebiete