The first stage degradation, which occurred in the range of 235-340 degC were due to dehydrochlorination
during the thermal degradation of PVC .
2] that can catalyze dehydrochlorination
and promote early crosslinking of PVC thereby leading to rapid charring.
They can metabolize insecticides by facilitating their reductive dehydrochlorination
or by conjugating glutathione to xenobiotic compounds with electrophilic centers (e.
Degradation in PVC begins with a process known as dehydrochlorination
, an impressive term for the loss of hydrogen chloride.
The acceleration of dehydrochlorination
by these radicals is
He describes the additives according to function, such as plasticizers, optical brighteners, lubricants, nucleating agents, dehydrochlorination
stabilizers, metal deactivators, and compatibilizers.
The active congener of DDT is metabolized by reductive dehydrochlorination
to the most stable and common form of DDE (Kitamura et al.
This is explainable because during the process of vulcanization these highly chlorinated polymers are subject to effective dehydrochlorination
(for example, by ZnO that is always present in rubber mixes) resulting in unsaturation in the chain of polymers that is easily destroyed by ozone attack.
There are special cases such as dehydrochlorination
leading to the discoloration and embrittlement of poly(vinyl chloride) and photo-Fries reactions contributing to the degradation of polycarbonates.
The thermo gravimetric analyzer (TGA) thermograms of a and AY blends system showed that there is two stage thermal degradation, the first stage degradation of PMMA/PVC is due to dehydrochlorination
4] particles in the PVC matrix may not induce the bad dehydrochlorination
gambiae, an important African malarial vector, the increased rate of DDT dehydrochlorination
in the resistant vector strain was associated with quantitative increase of GST enzymes that included Delta and Epsilon classes (13).