The behaviour of polyethylene with different contents in vinyl and t-vinylene groups have
been studied by photooxidation with λ≥ 300 nm light or by thermooxidation at a temperature …

The cryogenic properties of polymers are recently drawing attention with new developments
in space, superconducting magnet and electronic technologies. Requirements for polymeric …

The presence in seawater of low-molecular-weight polyethylene (PE) and
polydimethylsiloxane (PDMS), synthetic polymers with high chemical resistance, has been …

By utilizing predetermined equilibrium magnetization conditionsand the measured nuclear
Overhauser enhancement factors for the appropriate carbon atoms, we have obtained …

Crystalline polyethylenes bearing carboxylic acid groups in the main chain were
successfully degraded with a Ce catalyst and visible light. The reaction proceeds in a …

A new procedure has been developed for the identification and quantification of key
products from the oxidation of solid polyolefins, based on reactions with gaseous nitric …

A series of reactions with gases have been selected for the rapid quantification of many of
the major products from the oxidation of polyolefins. Infrared spectroscopy is used to …

Hydroperoxide groups are widely believed to be critical intermediates in the oxidative
degradation of many polymers, especially commodity polyolefins [34, 5 1-53]. Trace …

Degradation of polymers is usually manifested in a reduction of molecular weight, increase
of crystallinity in semicrystalline polymers, increase of material density, a subtle increase in …

Thermal degradation of crosslinked high density polyethylene (HDPE) has been
investigated by the thermal and spectroscopic methods for development of HDPE as a …