Stereosequenced crystalline polyhydroxyalkanoates from diastereomeric monomer mixtures

Autor:	Eli M. Watson, Andrea H. Westlie, Eugene Y.-X. Chen, Xiaoyan Tang
Rok vydání:	2019
Předmět:	chemistry.chemical_classification Multidisciplinary Materials science Diastereomer Polymer Polyhydroxyalkanoates Stereocenter chemistry.chemical_compound Monomer chemistry Polymerization Tacticity Polymer chemistry Stereoselectivity
Zdroj:	Science (New York, N.Y.). 366(6466)
ISSN:	1095-9203
Popis:	Toward less brittle degradable plastic Bacteria produce a class of polyesters, termed polyhydroxyalkanoates, that are particularly appealing on account of how easily they undergo biodegradation. Unfortunately, these polymers also tend to be overly brittle for many applications. Tang et al. report that a molecular lanthanide catalyst can sequentially polymerize chiral and then achiral diastereomers to form polyhydroxyalkanoate varieties that are substantially more ductile. The catalyst selectively produces these copolymers directly from diastereomeric mixtures of monomers, obviating the need for a wasteful separation process ahead of time. Science , this issue p. 754
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d10c57c03f48c26b781216b13bd8844 https://pubmed.ncbi.nlm.nih.gov/31699939 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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