Free-Radical Polymerization of Acrylic Acid under Extreme Reaction Conditions Mimicking Deep-Sea Hydrothermal Vents
| Autor: | Shigeru Deguchi, Yoshinori Takano, Naohiko Ohkouchi, Keigo Kinoshita |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Bulk polymerization 010405 organic chemistry General Chemical Engineering Radical polymerization 02 engineering and technology General Chemistry Polymer Potassium persulfate 021001 nanoscience & nanotechnology 01 natural sciences Article 0104 chemical sciences Catalysis lcsh:Chemistry chemistry.chemical_compound Monomer chemistry Polymerization lcsh:QD1-999 Polymer chemistry 0210 nano-technology Acrylic acid |
| Zdroj: | ACS Omega, Vol 2, Iss 6, Pp 2765-2769 (2017) ACS Omega |
| ISSN: | 2470-1343 |
| Popis: | Free-radical polymerization with a thermochemical initiator, which usually takes hours to complete, was dramatically accelerated under reaction conditions mimicking the deep-sea hydrothermal vents, where reaction mixtures were only briefly exposed to ultrahigh temperatures under pressure. In tests using acrylic acid and potassium persulfate, poly(acrylic acid) (Mn = 2.1 × 104, Đ = 2.73) was obtained in 5.2 s with the monomer conversion of 60.3% in water at 200 °C and 25 MPa without using any catalysts. The process that we call heat-shock-induced polymerization may pave the way for an entirely new strategy in reaction engineering for developing extremely fast, green, and scalable processes for polymer synthesis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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