๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Organotellurium compounds as stabilizers for polymeric materials

โœ Scribed by Lars Engman; David Stern; Bengt Stenberg

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
368 KB
Volume
59
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

โœฆ Synopsis

The thermal stability of a series of organotellurium compounds was determined by thermogravimetric analysis and the stabilizing capacity of the most heat-resistant compounds assessed in natural rubber, polyethylene, and polypropylene by measurement of the oxidative induction time (OIT). The most active compounds, bis[4-(dimethylamino)phenyl]telluride (5) and bis[2,6-dimethyl-4-(dimethylamino)phenyl]telluride (10) stabilized natural rubber considerably at the 1% level and even more so a t the 2% level. A similar stabilizing effect of compound 5 was found in polyethylene and polypropylene a t the 0.1% level.

๐Ÿ“œ SIMILAR VOLUMES

Reactivity of Sm(II) compounds as ring-o
Reactivity of Sm(II) compounds as ring-opening polymerization initiators for lactones
โœ Seema Agarwal; Natalia E. Brandukova-Szmikowski; Andreas Greiner ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 64 KB

Successful room temperature ring-opening polymerization (ROP) of e-caprolactone and d-valerolactone has been carried out using SmX 2 (X = I, Br, and cyclopentadienyl (Cp)) catalysts. SmI 2 in the presence of metallic Sm was found to have enhanced reactivity as room temperature ROP initiator for lact

Donor Atom-Stabilized Aluminum Alkyls as
Donor Atom-Stabilized Aluminum Alkyls as Cocatalysts for the Zieglerโ€“Natta Polymerization of Propene
โœ Andrea Eisenhardt; Bjรถrn Heuer; Walter Kaminsky; Katrin Kรถhler; Herbert Schumann ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 102 KB

## Abstract A number of organoaluminum compounds, stabilized with intramolecular nitrogenโ€ or oxygenโ€donor functions, have been used as cocatalysts for the MgCl~2~/TiCl~4~โ€catalyzed homopolymerization of propene as well as for the copolymerization of ethene with propene. The polymerization behavior