Hydrotalcites catalyze the acidolysis polymerization of phenolic acid to create highly heat-resistant bioplastics
Abstract
Abstract Acidolysis polymerization has been used to prepare phenol‐derived polymers such as liquid crystalline (LC) polymers, and is catalyzed by mildly‐alkaline salts. The catalytic effects of hydrotalcites (HTs), which are natural alkalescent minerals with controllable basicity, are investigated on the acidolysis copolymerization of coumarates such as p‐coumaric acid and caffeic acid. As a result, the LC copolymer prepared in the presence of HT with a Mg/Al ratio of 3 shows higher molecular weight values than copolymers prepared in the presence of any other alkalescent salts. On the other hand, the copolymers prepared in the presence of HTs show a clear LC state where the polymer chains are oriented on the surface of the glass fibers. The resin, which is oriented by glass fiber fillers aligning along its longitudinal axis and is annealed at 300 °C for 20 min, shows a softening temperature of 305 °C while keeping a high mechanical strength of 85 MPa and a high mechanical modulus over 1 GPa.
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In 2013 Wang and co-workers proposed the synthesis of a trifunctional symmetric diester monomer 4-hydroxycinammic acid (4HCA), which is well-known for its photo-reversibility.
“In 2013 Wang and co-workers proposed the synthesis of a trifunctional symmetric diester monomer or 4-hydroxycinammic acid (4HCA), which is well-known for its photo-reversibility [95-97].”
From Shape-memory polymers for multiple applications in the materials world (2016) · cites this paper as [96]
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Shape-memory polymers for multiple applications in the materials world
Pilate, F., Toncheva, A., Dubois, P., & Raquez, J.-M. (2016) · European Polymer Journal · doi:10.1016/j.eurpolymj.2016.05.004 · Cited by 332 · see citing works
Hyperbranched polycoumarates with photofunctional multiple shape memory
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- Authors
- Chauzar, M., Tateyama, S., Ishikura, T., Matsumoto, K., Kaneko, D., Ebitani, K., & Kaneko, T.
- Affiliations
- Japan Advanced Institute of Science and Technology (JP)
- Corresponding author
- Kaneko, Tatsuo
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2012-05-10
- Volume
- 22
- Issue
- 16
- Pages
- 3438-3444
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2169506552
- Cited by
- 22
- References
- 7
- Citations by year
- 2024: 1 · 2023: 3 · 2022: 1 · 2020: 1 · 2019: 2 · 2018: 1 · 2017: 1 · 2016: 4 · 2015: 2 · 2014: 1 · 2013: 4 · 2012: 1
- FWCI
- 3.91
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Advanced Functional Materials (publishedVersion)
- Funders
- Advanced Low Carbon Technology Research and Development Program
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Epoxy Resin Curing Processes
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Synthesis and properties of polymers
- Keywords
- hydrotalcite, p-coumaric acid, caffeic acid, liquid crystalline polymers, Mg/Al ratio, glass fiber reinforcement, annealing, softening point, mechanical strength, molecular weight
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