Laccat – A novel class of Zn-catalyst for the polymerization of cyclic esters
The use of heavy metals in chemical production and their
concentration in products, in particular biodegradable polymers, become increasingly an issue of concern. Often zinc is considered less problematic compared to other catalytic active elements like tin. A novel type of zinc complexes has been proved to successfully catalyze ring-opening polymerizations of lactides. In principle, these new catalyst can be used for the ringopening polymerisation of a broad range of cyclic esters. Commercial Opportunity The novel Zn-catalysts offer the opportunity to substitute heavy metal catalyst. They can be utilized to catalyze the polymerization of lactones, lactams, lactims, lactols, lactides and thio-derivatives. The Zn-catalysts are stable with respect to air and air humidity and have been successfully tested in a lactide polymerization in the melt at 135 – 200°C. These new catalyst are suitable for the production of polymers with an optimized polydispersity. For example, they can easily be used for the production of Polylactides (PLA) in conventional plants.
Further Information: PDF
PROvendis GmbH
Phone: +49 (0)208/94105 10
Contact
Dipl.-Ing. Alfred Schillert
Media Contact
All latest news from the category: Technology Offerings
Newest articles
A universal framework for spatial biology
SpatialData is a freely accessible tool to unify and integrate data from different omics technologies accounting for spatial information, which can provide holistic insights into health and disease. Biological processes…
How complex biological processes arise
A $20 million grant from the U.S. National Science Foundation (NSF) will support the establishment and operation of the National Synthesis Center for Emergence in the Molecular and Cellular Sciences (NCEMS) at…
Airborne single-photon lidar system achieves high-resolution 3D imaging
Compact, low-power system opens doors for photon-efficient drone and satellite-based environmental monitoring and mapping. Researchers have developed a compact and lightweight single-photon airborne lidar system that can acquire high-resolution 3D…