6533b862fe1ef96bd12c7514

RESEARCH PRODUCT

Deuteron n.m.r. in relation to the glass transition in polymers

Hans SillescuE. RösslerHans Wolfgang Spiess

subject

chemistry.chemical_classificationPolymers and PlasticsChemistryOrganic ChemistryRelaxation (NMR)Analytical chemistryPolymerAmorphous solidCondensed Matter::Soft Condensed Matterchemistry.chemical_compoundNuclear magnetic resonanceDeuteriumMaterials ChemistrySpin echoPolystyrenePhysics::Chemical PhysicsGlass transitionRotational Brownian motion

description

Abstract 2H n.m.r. is introduced as a tool for investigating slow molecular motion in the glass transition region of amorphous polymers. In particular, we compare 2H spin alignment echo spectra of chain deuterated polystyrene with models for restricted rotational Brownian motion. Molecular motion in the polystyrene-toluene system has been investigated by analysing 2H n.m.r. of partially deuterated polystyrene and toluene, respectively. The diluent mobility in the mixed glass has been decomposed into ‘solid’ and ‘liquid’ components where the respective average correlation times differ by more than 5 decades.

yearjournalcountryeditionlanguage
1985-02-01Polymer
https://doi.org/10.1016/0032-3861(85)90031-x