Nature-inspired methylated polyhydroxybutyrates from C1 and C4 feedstocks
Journal Article
·
· Nature Chemistry
- Cornell University, Ithaca, NY (United States); Cornell University
- Cornell University, Ithaca, NY (United States)
- ExxonMobil Technology and Engineering Company, Annandale, NJ (United States)
Polyolefin plastics are widely used due to their low cost and outstanding properties, but their environmental persistence presents a major societal challenge. Polyhydroxyalkanoates (PHA) are biodegradable substitutes for polyolefins, but their high cost and thermal instability are impediments to their widespread application. Here we report a series of methylated polyhydroxybutyrates, poly(3-hydroxy-2-methylbutyrate)s, which are structurally inspired by natural PHAs. The cis homopolymers exhibit tacticity-independent crystallinity, which allows for the discovery of high-melting, thermally stable and mechanically tough copolymers, and a full range of polyolefin-like properties can be further achieved by tailoring the cis/trans ratio of the repeating units. Moreover, these materials can be synthesized from inexpensive carbon monoxide and 2-butene feedstocks, and they can be chemically recycled or upcycled at their end of life. As a result, the versatile properties, abundant feedstocks and end-of-life utility of this family of polyesters will enable a powerful platform for the discovery of sustainable alternatives to polyolefin plastics.
- Research Organization:
- Cornell University, Ithaca, NY (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- FG02-05ER15687
- OSTI ID:
- 1992433
- Alternate ID(s):
- OSTI ID: 2339636
- Journal Information:
- Nature Chemistry, Journal Name: Nature Chemistry Journal Issue: 6 Vol. 15; ISSN 1755-4330
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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