G. Lévai, G. Ocskay, Z. Nyitrai
1992
Citations
0
Influential Citations
12
Citations
Journal
Polymer Degradation and Stability
Abstract
Abstract A considerable increase in induction times was observed when Cd stearate and pentaerythritol were used together as stabilizers in the thermal degradation of PVC. Kinetic calculations which assume the formation of a chelate formed from pentaerythritol and Cd stearate show that this chelation reduces the ionic strength of the system and thereby increases the rate of replacement of the allyl-activated chlorine atoms in PVC. The increase in induction times is due to the reduction of ionic strength by this chelation.