Research Article

Synthesis of New Thiophene Derivatives and Their Use as Photostabilizers for Rigid Poly(vinyl chloride)

Table 1

Quantum yield () for chain scission for PVC films (30 m) with and without additive (0.5%wt) after 250 h irradiation time.

Additive (0.5%wt)Quantum yield of main chain scission ()

PVC + 4e
PVC + 4d
PVC + 4b
PVC + 4a
PVC + 4c
PVC (blank)