Free-Radical Polymerization of Acrylic Acid under
Extreme Reaction Conditions Mimicking Deep-Sea Hydrothermal Vents
Posted on 2017-06-19 - 08:14
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.
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Kinoshita, Keigo; Takano, Yoshinori; Ohkouchi, Naohiko; Deguchi, Shigeru (2017). Free-Radical Polymerization of Acrylic Acid under
Extreme Reaction Conditions Mimicking Deep-Sea Hydrothermal Vents. ACS Publications. Collection. https://doi.org/10.1021/acsomega.7b00293
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AUTHORS (4)
KK
Keigo Kinoshita
YT
Yoshinori Takano
NO
Naohiko Ohkouchi
SD
Shigeru Deguchi
KEYWORDS
reaction conditionspotassium persulfatescalable processeshydrothermal ventsthermochemical initiatorultrahigh temperatures25 MPaExtreme Reaction Conditions Mimicking Deep-Sea Hydrothermal Vents Free-radical polymerizationreaction engineeringFree-Radical PolymerizationM nmonomer conversionacrylic acidheat-shock-induced polymerizationpolymer synthesisreaction mixtures