Natural fibre-polymer adhesion can be improved by treating the fibre surface or polymer. In this study, resorcinol-hexamethylenetetramine mixture (R-HMT) is used as a chemical treatment for kenaf fibre waste to extend the interfacial adhesion between the fibre-polystyrene matrices. The effect of the untreated and treated kenaf fibre (designated as UK and TK fibre) on the thermal (DSC), viscoelastic, mechanical, hydrophobicity, and barrier properties of polystyrene (PS) was studied.
View Article and Find Full Text PDFImaging the high-affinity, functional state (HA) of dopamine D2 and D3 receptors has been pursued in PET imaging studies of various brain functions. We report further evaluation of F-5-OH-FPPAT, and the newer F-5-OH-FHXPAT and F-7-OH-FHXPAT. Syntheses of F-5-OH-FHXPAT and F-7-OH-FHXPAT were improved by modifications of our previously reported procedures.
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