Degradation of PVC waste into a flexible polymer by chemical modification using DINP moieties.

ABSTRACT: In consideration of the toxicity and high migration capacity of plasticizers, the possibility to obtain flexible PVC via chemical modification of PVC was investigated for feedstock recycling. In this work, some Cl atoms of PVC were substituted with fragments of the common plasticizer DINP (diisononyl phthalate) in the presence of K₂CO₃ (potassium carbonate) or DIEA (N,N-diisopropylethylamine), and the simultaneous elimination of PVC was suppressed. ¹H NMR (¹H nuclear magnetic resonance spectroscopy) and ¹H-¹H COSY (¹H-¹H correlation spectroscopy) were used to evaluate the substitution while a novel method of calculating the substitution and elimination ratios was developed using a c

SUBMITTER: Lu L 

PROVIDER: S-EPMC9071209 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature