Etude par 1H NMR des groupements chlorométhyles du poly(chlorure de vinyle), 1. Synthèse et étude de modèles moléculaires chloro‐4 chlorométhyl‐3 heptane et trichloro‐1,2,4 pentane

Abstract

Abstract4‐Chloro‐3‐chloromethylheptane (2) and 1,2,4‐trichloropentane (3) were synthesized and analysed by means of 1H NMR. These compounds — with two asymmetric carbon atoms — are models for two types of structure involving chloromethyl groups present in poly(vinyl chloride): short chloromethyl branches and chain end groups resulting from reinitiation by a chlorine atom. The spectra of these compounds allow a better understanding of the corresponding resonance region observed in standard PVC.