6533b829fe1ef96bd128a1e7

RESEARCH PRODUCT

Small angle X-ray scattering from amorphous polymers arising from heterogeneities

E. W. FischerJoachim H. Wendorff

subject

chemistry.chemical_classificationMaterials sciencePolymers and PlasticsScatteringSmall-angle X-ray scatteringPolymerAmorphous solidCondensed Matter::Soft Condensed MatterMatrix (mathematics)CrystallographyColloid and Surface ChemistrychemistryChemical physicsPhase (matter)Materials ChemistryPhysical and Theoretical ChemistryWide-angle X-ray scatteringIntensity (heat transfer)

description

The small angle X-ray scattering of glassy polymers (PET, PC, PVC, PMMA) and of polymer melts (PE) was studied. The dependence of the intensity scattered at small angles on the sample treatment suggests that neither the inherent structure of the pure polymer phase nor microholes are the origin of the scattering. In agreement with all experimental facts the scattering can be attributed to foreign particles such as for instance stabilizers in the polymer matrix. The consequence of this result is discussed with respect to the nodular structure of the amorphous phase and with respect to structural models of the amorphous phase. The nodular structure is not related to regions of different densities within the pure amorphous phase.

https://doi.org/10.1007/bf01498915