We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Conversion of polyhydroxybutyrate (PHB) to methyl crotonate for the production of biobased monomers.
- Authors
Spekreijse, Jurjen; Le Nôtre, Jerome; Sanders, Johan P. M.; Scott, Elinor L.
- Abstract
ABSTRACT Within the concept of the replacement of fossil with biobased resources, bacterial polyhydroxybutyrate (PHB) can be obtained from volatile fatty acids (VFAs) from agro-food waste streams and used as an intermediate toward attractive chemicals. Here we address a crucial step in this process, the conversion of PHB to methyl crotonate (MC), which can be converted via cross-metathesis with ethylene to methyl acrylate and propylene, two important monomers for the plastics industry. The conversion of PHB to MC proceeds via a thermolysis of PHB to crotonic acid (CA), followed by an esterification to MC. At pressures below 18 bar, the thermolysis of PHB to CA is the rate-determining step, where above 18 bar, the esterification of CA to MC becomes rate limiting. At 200°C and 18 bar, a full conversion and 60% selectivity to MC is obtained. This conversion circumvents processing and application issues of PHB as a polymer and allows PHB to be used as an intermediate to produce biobased chemicals. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42462.
- Subjects
POLYHYDROXYBUTYRATE biotechnology; FATTY acids; FOOD industrial waste; MONOMERS; ETHYLENE; PROPENE
- Publication
Journal of Applied Polymer Science, 2015, Vol 132, Issue 35, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.42462