Abstract A simple and sensitive chemiluminescence (CL) method was developed for direct quantification of oxymorphone, a µ opioid agonist that is approximately 10 times more potent than morphine. In this method potassium permanganate in polyphosphoric acid was used as CL reagent. Using this method, oxymorphone can be determined over the concentration ranges 13.5-337.8 ng mL-1 and 0.34-6.76...

The objective of this research was to develop prediction models for complex shear modulus (G*) and phase angle (δ) bitumens modified with crumb rubber, styrene-butadiene styrene, polyphosphoric acid at low moderate temperatures. experiments consisted three different dosages each modifier added the original bitumen followed by measurement G* δ using dynamic rheometer (DSR) test in frequency swee...

This doctoral thesis consists of a literature review, presented in two papers, and another six papers describing experimental studies of the influence of different kinds of wax and polyphosporic acid on bitumen and asphalt concrete mixture properties. The literature review should give an extensive description of the field of knowledge concerning wax in bitumen. Effects of wax in crude oil, bitu...

1. Wang, David H.; Baek, J.-B. ; Nishino, S. F.; Johnson, G.; Spain, J. C.; Tan, L.-S. “Thermally Reactive PhenylethynylTerminated Bisamide Based on Semi-Enzymatically Produced 6-Phenylethynyl Picolinic Acid” Polymer 2005, submitted (submitted: 10-28-0 5, Editor: S. Cheng, accepted as it is: 12-19-05, proof: 01-02-06, published online: published hardcopy). 2. Oh, S.-J.; Lee, H.-J.; Keum, D.-K.;...

Over the recent years, bitumen modification with polymers, acids, or mineral fillers has gained relevance to adjust its performance properties. This work reports the use of polyphosphoric acid (PPA) for the modification of formulated bitumen. With this objective, an in-depth literature review on PPA modification was firstly performed. Subsequently, five individual refinery components were selec...

Surface coating of cathodes is an essential process for all-solid-state batteries (ASSBs) based on sulfide electrolytes as it efficiently suppresses interfacial reactions between oxide and electrolytes. Based computational calculations, Li3PO4 has been suggested a promising material because its higher stability with sulfides optimal ionic conductivity. However, hardly applied to the ASSBs due a...