Four different phases are analysed with this method: (1) crystalline phase and rigid fraction of the amorphous phase, (2) semi-rigid crystal-amorphous interface, (3) soft fraction of the amorphous phase and (4) rubbery-like material.
These experiments established the temperature range for which the largest differences are observed in molecular mobility in crystalline phase, semi-rigid crystal amorphous interface, and soft fraction of the amorphous phase allowing accurate determination of the phase composition and the thickness of these domains.
In the Preakness, the Hall of Fame jockey Gary Stevens, aboard Oxbow, was allowed to coast on the lead with very soft fractions.
With seven left in the field, Discreet Dancer had things his own way early, leading through soft fractions of 24.50 seconds, 48.11 and 1 minute 12.05 seconds.
The amount of the rigid fraction in annealed samples is smaller in samples with higher amount of branches, and molecular mobility in the rigid and soft fractions is larger.
Molecular mobility, the thickness of domains and the amount of rigid, semi-rigid, and soft fractions of high-density polyethylene (HDPE) were characterized as a function of temperature and annealing time using time- and frequency-domains proton solid-state NMR.
SBOP polyol reduced hard domain size and soft domain fraction, and showed a broad distribution of interdomain spacings.
The amount of newly formed bone in the defect region was not significantly different from the defects treated with the G-foam, whereas the soft tissue fraction, representing the bone marrow between the bone trabeculae, was decreased, although not significantly, confirming the observation of a higher bone density (Fig. 4).
In order to validate this model, three PUs of similar compositions but different soft segment fractions have been characterized by DSC, TEM, AFM and SAXS and their electrostriction properties have been measured.
Subsequently, an analytical model considering the volume fraction of soft interfaces around spheroidal particles is presented.
The flexibility of mixtures and their stress dependant behaviour was investigated based on the volumetric fraction of soft aggregates in the blend.
