期刊
POLYMER CHEMISTRY
卷 9, 期 23, 页码 3272-3278出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8py00502h
关键词
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资金
- National Science Foundation under the Center for Sustainable Polymers (NSF) [CHE-1413862]
- University of Minnesota's Polymer Characterization Facility (UMN MRSEC) [DMR-1420013]
- Office of the Vice President of Research at the University of Minnesota
- College of Science and Engineering at the University of Minnesota
- Department of Chemistry at the University of Minnesota
- The National Science Foundation (NSF) [CHE-1336940]
With the aim of preparing sustainable and degradable polymers from sugar-derived precursors, a family of five poly(ester-thioethers) were synthesized by photoinitiated thiol-ene polymerization of monomers incorporating d-glucaro-1,4:6,3-dilactone (GDL). Various dithiols were used to produce linear poly(ester-thioethers) of glucarodilactone 10-undecenoate (GDLU) to probe the effect of the dithiols on the observed mechanical performance and degradability. The samples exhibited glass transition (T-g) values from -8.7 to 19 degrees C. The polymers with the simplest dithiols, 1,2-ethanedithiol (EtDT) and 3,6-dioxa-1,8-octane-dithiol (DODT), were found to exhibit crystallinity, while the more structurally complex and rigid dithiol structures were found to produce amorphous materials. Due to the GDL units in the polymers, rapid degradation under basic aqueous conditions and stability in acidic and neutral conditions were observed. Tensile testing of these materials showed robust mechanical properties, including tunable moduli (0.011 to 0.29 GPa), strength (21 to 42 MPa), and ductility (410 to 590%).
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