Time-resovled SANS studies of the hot crystallisation of PET

Abstract Time-resolved small-angled neutron scattering (SANS) was used to examine the hot crystallisation processes in a blend of deuterated and hydrogenated poly(ethylene terephthalate) , over a temperature range of 220–230 °C. The scattering pattern was able to follow the growth process of the crystallisation with a peak increasing in intensity over time at a scattering vector Q value of ∼0.04 A −1 . Avarmi analysis and half-life measurements were used to compare the SANS data with results from differential scanning calorimetry experiments.