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Nature-inspired methylated polyhydroxybutyrates from C1 and C4 feedstocks

Journal Article · · Nature Chemistry
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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