Abstract
Publisher Summary This chapter describes the chromatographic analysis of refined and synthetic waxes. Materials with wax-type properties can be synthesized from several routes. The Fischer–Tropsch process is used to produce a unique series of high-melting waxes containing mainly straight-chain alkanes. Polyethylene wax materials, which are produced from the polymerization of ethylene, have a higher molecular-weight distribution than most petroleum waxes and are composed almost wholly of even-numbered straight-chain alkanes. Most refined and synthetic waxes are not normally used as single substances in the industry but are blended with other materials. This gives the specific physical and chemical properties for end use. Wax blends are important as adhesives and coatings in packaging, as additives to inks and rubber components, and in many other product areas. The structural properties of refined and synthetic waxes have a direct bearing on physical properties, such as melting point, crystallinity, hardness, adhesion, flexibility, and viscosity. The gas–liquid chromatography (GLC) analysis of waxes can separate each of the straight-chain alkanes (n-alkanes) from the branched alkanes and cycloalkanes of the same molecular mass.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
