Estimation of the biobased carbon content of polypropylene resin in composites on the basis of the carbon 14 concentration
Article first published online: 18 OCT 2013
Copyright © 2014 Wiley Periodicals, Inc.
Journal of Applied Polymer Science
Volume 131, Issue 6, March 15, 2014
How to Cite
2014), Estimation of the biobased carbon content of polypropylene resin in composites on the basis of the carbon 14 concentration. J. Appl. Polym. Sci., 131, doi: 10.1002/app.39978, , and (
- Issue published online: 20 DEC 2013
- Article first published online: 18 OCT 2013
- Manuscript Accepted: 18 SEP 2013
- Manuscript Received: 28 MAY 2013
- biopolymers and renewable polymers;
The aim of this study was to estimate a procedure for the biobased carbon content of polypropylene (PP) resin isolated from composites containing additives or fillers on the basis of the carbon 14 concentration ratio, as measured by accelerated mass spectrometry (AMS). To reliably estimate the biobased carbon content of plastics, additives and fillers in the composites had to be removed because they often contain significant amounts of biobased carbon. To obtain specimens with purity suitable for estimation, an isolation procedure for PP from the composites was devised. The dissolution of the composites in 1,2,3,4-tetrahydronaphthalene at 150°C, followed by immediate centrifugation of the hot solution, yielded PP as semicrystalline precipitates by allowing the hot solution to cool during centrifugation. The recovery of the resin through the scooping off of the precipitates was typically 90%. This simple procedure provided a suitable specimen for the estimation of biobased carbon content by AMS on the basis of ASTM D 6866. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2014, 131, 39978.