Thermogravimetric Analysis as a Polymer Identification Technique in Forensic Applications

    Volume 49, Issue 3 (May 2004)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Published Online: 10 March 2004

    Page Count: 6


    Brinkman, D
    Indiana Wesleyan University, Marion, IN

    Ihms, EC
    Indiana Wesleyan University, Marion, IN

    (Received 10 August 2003; accepted 21 December 2003)

    Abstract

    This paper investigates the potential of thermogravimetric analysis (TGA) as a tool for determination of different species of polymers. Materials analyzed include polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), polystyrene, polypropylene, nitriles, and nylon. Analyses showed excellent discriminating results even when samples were contaminated with silicates, organics, moisture, and char. The techniques developed were designed with a forensic-type analysis in mind, such as analysis of blast fragments and arson debris. Techniques were developed that gave satisfactory results even when sample sizes were less than five milligrams.


    Paper ID: JFS2003252

    DOI: 10.1520/JFS2003252

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    Author
    Title Thermogravimetric Analysis as a Polymer Identification Technique in Forensic Applications
    Symposium , 0000-00-00
    Committee E30