Abstract:The formation of dimerized polystyrene molecules during static SIMS measurements, already reported in a previous paper [Surf. Interface Anal. 20, 549 (1993)l has been further investigated. Samples of styrene oligomers with very narrow molecular weight distribution were prepared by fractionating polystyrene standards by means of supercritical fluid chromatography and then irradiated in situ in a time-of-flight SIMS spectrometer. Pre-irradiated samples have also been studied for comparison purposes. The results … Show more
“…Not surprisingly, PS dimer formation was also observed during extended SIMS analysis of PS. 65 The cross-linking intensifies in Figure 5.18b, after irradiation with 6.5 × 10 12 ions/cm 2 .…”
Section: Ion Beam Irradiation and The Gel Pointmentioning
“…Not surprisingly, PS dimer formation was also observed during extended SIMS analysis of PS. 65 The cross-linking intensifies in Figure 5.18b, after irradiation with 6.5 × 10 12 ions/cm 2 .…”
Section: Ion Beam Irradiation and The Gel Pointmentioning
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