The grafting of luminescent side groups onto poly(vinyl chloride) and the identification of local structural features - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Polymer Degradation and Stability Année : 2007

The grafting of luminescent side groups onto poly(vinyl chloride) and the identification of local structural features

Résumé

The phosphorescence and fluorescence emitted by both the chromophores existing in raw PVC (allylic and ketoallylic structures and polyenes) and luminescent probes introduced by substitution of chlorine atoms have been used to study local features of the chain microstructure, namely the formation of blocky sequences during the nucleophilic substitution of chlorine atoms and the length and nature of the chain segments relaxing below Tg, i.e., the β relaxation. The comparison with results obtained by dynamic mechanical analysis of some of the copolymers has been carried out. Blocky sequences are found to exist and all isotactic sequences over a diad together with their heterotactic associated triads are found to participate in the β motions.
Fichier non déposé

Dates et versions

hal-03795498 , version 1 (04-10-2022)

Identifiants

  • HAL Id : hal-03795498 , version 1

Citer

N. Garcia, M. Hoyos, Gilbert Teyssedre, R. Navarro, Helmut Reinecke, et al.. The grafting of luminescent side groups onto poly(vinyl chloride) and the identification of local structural features. Polymer Degradation and Stability, 2007, 92 (12), pp.2300-2307. ⟨hal-03795498⟩
15 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More