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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

✍ Scribed by Doan, Huynh Dong ;Pétiaud, Roger ;Llauro-Darricades, Marie-France

Publisher: Wiley (John Wiley & Sons)
Year: 1989
Weight: 482 KB
Volume: 190
Category: Article
ISSN: 0025-116X
DOI: 10.1002/macp.1989.021900721

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✦ Synopsis

4-Chloro-3-chloromethylheptane

(2) and 1,2,4-trichloropentane (3) were synthesized and analysed by means of 'H NMR. These compoundswith two asymmetric carbon atomsare models for two types of structure involving chloromethyl groups present in poly(viny1 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.

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✍ Llauro-Darricades, Marie-France ;Pétiaud, Roger 📂 Article 📅 1989 🏛 Wiley (John Wiley & Sons) ⚖ 404 KB 👁 1 views

In order to assign all -CH,CI resonances observed by ' H NMR in poly(viny1 chloride), (PVC), a preliminary study of the diastereoisomers of molecular models for the groups CH2Cl-CHCI- [11] and ClCH,-CH< [IV] is used, in conjunction with spin echo experiments. The complex region [3,5 -4,O ppm] which