Temperature dependence of local chain dynamics in atactic polypropylene: A neutron spin-echo study

Valeria Arrighi, C. Pappas, A. Triolo, S. Pouget

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We report a neutron spin-echo (NSE) study of deuterated atactic polypropylene (aPP) using the multi-detector option on the spectrometer IN11 at the Institut Laue-Langevin (France). Experiments were performed in the temperature range 300-360 K i.e. above the polymer glass transition (Tg = 253 K). Neutron spectra were collected in the Q-region (0.8 < Q < 1.2 Å-1) around the first interference peak of the static structure factor S(Q) at 1.1 Å-1 which corresponds to intermolecular correlations. As shown recently for polyisobutylene and polybutadiene, the NSE data of aPP display the same temperature dependence as obtained from viscosity measurements. © 2001 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)157-162
Number of pages6
JournalPhysica B: Condensed Matter
Volume301
Issue number1-2
DOIs
Publication statusPublished - Jul 2001
Event5th International Workshop on Quasi-Elastic Neutron Scattering - Edinburgh, Scotland, United Kingdom
Duration: 31 Aug 2000 → …

Keywords

  • Dynamics
  • Neutron spin echo
  • Polymers

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