AN ANALYTICAL GAS CHROMATOGRAPH FOR PRODUCTS OF ISOTHERMALLY DEGRADED POLYMERS
Abstract
A commercial gas chromatograph was modified to simultaneously analyze parallel inputs of organic compounds and fixed gases originating as the degradation products of isothermally pyrolyzed alpha-cellulose. The pyrolysis chamber and a complex gas-handling system for separating and concentrating the pyrolyzates were attached directly to the chromatograph cabinet, and a complete system of temperature control zones was established. A detailed description of the arrangement and operation of (1) an isothermal pyrolysis chamber for sample generation, (2) a temperature control and valving system for sample separation and concentration, and (3) a parallel liquid partition and solid adsorption gas chromatography system for sample analysis is presented. The technique is applied to trial analysis of the degradation products of white alpha-cellulose pyrolyzed isothermally for 10 minutes in a nitrogen-fluidized sand bath at 360 deg C.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 05, 1968
- Accession Number
- AD0669784
Entities
People
- Anne E. Lipska
- John R. Nichols
Organizations
- Naval Radiological Defense Laboratory