6533b853fe1ef96bd12aca48

RESEARCH PRODUCT

Raman spectrum of the high pressure phase of polyethylene

Gert StroblR. EckelM. BubackH. Schwickert

subject

Materials sciencegenetic structuresPolymers and PlasticsAnalytical chemistryMineralogyHigh pressure cell02 engineering and technology01 natural scienceslaw.inventionsymbols.namesakechemistry.chemical_compoundlawPhase (matter)Materials Chemistry010401 analytical chemistryHexagonal phaseGeneral ChemistryPolyethylene021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical scienceschemistryHigh pressuresymbolsShort range orderHydrostatic equilibrium0210 nano-technologyRaman spectroscopy

description

The Raman spectrum of the hexagonal high pressure phase of polyethylene was measured at 5.2 kbar and 240 °C, using a hydrostatic high pressure cell. The spectrum is largely identical to that obtained for the melt. This result indicates that the conformational short range order in the hexagonal phase remains melt —like and is not modified by the overall straightening of chains.

https://doi.org/10.1007/bf00256379