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Biomass-Derived Poly(ether-amide)s Incorporating Hydroxycinnamates
Brianna M Upton1, Andrea M Kasko2
1Department of Chemistry and Biochemistry , University of California, Los Angeles , Los Angeles , California 90095 , United States.
Biomacromolecules
|January 24, 2019
Summary
Researchers developed new lignin-based poly(ether-amide)s from renewable biomass. These high-performance polymers show excellent hydrolysis resistance and tunable properties for sustainable material applications.
Area of Science:
- Polymer Chemistry
- Sustainable Materials Science
- Biomass Valorization
Background:
- Lignin is an abundant, low-cost, non-petroleum source of aromatic compounds.
- Aromatic moieties are crucial for high-performance polymer development.
- Developing sustainable polymer feedstocks is a key research area.
Purpose of the Study:
- To synthesize and characterize novel poly(ether-amide)s using lignin-derived hydroxycinnamates.
- To explore the structure-property relationships of these new polymers.
- To assess the potential of lignin as a feedstock for advanced polymeric materials.
Main Methods:
- Incorporation of three lignin-derived hydroxycinnamates (coumaric, ferulic, sinapinic acids) into dimers.
- Copolymerization of these dimers with seven different aliphatic and aromatic diamines via interfacial polymerization.
- Characterization of the resulting 21 poly(ether-amide)s, including solubility, thermal properties (Tg, Td), and hydrolysis resistance.
Main Results:
- A series of 21 novel poly(ether-amide)s were successfully synthesized.
- The polymers displayed limited solubility in common organic solvents but good solubility in DMF.
- Moderate glass transition temperatures and thermal stabilities were observed.
- Excellent resistance to hydrolysis was a key characteristic of the synthesized polymers.
Conclusions:
- The modular synthetic strategy allows for the creation of diverse polymers with tunable properties.
- Lignin-derived monomers offer a sustainable route to aromatic polymers.
- These poly(ether-amide)s show promise for applications requiring high hydrolysis resistance and tailored performance.
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