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High-Speed Synthesis of Thermo-responsive Polymers by Boosted Polymerization of N , N -Diethyl Acrylamide in High-Temperature Water by Sumito Ishii; Akinori Sezai; Yasuhiro Kohsaka; Shigeru Deguchi; Mitsumasa Osada is a Engineering article available to read on EtoBox.
What is High-Speed Synthesis of Thermo-responsive Polymers by Boosted Polymerization of N , N -Diethyl Acrylamide in High-Temperature Water about?
The transition toward a circular plastic economy and sustainable chemical industries requires the development and implementation of green methods of free radical polymerization. In this study, the high-speed radical polymerization of N,N-diethyl acrylamide was achieved in hightemperature water (150 °C, 0.5 MPa) without using potentially contaminating organic solvents. Precipitation polymerization was completed within 2 min. The molecular weight of the resulting polymer (27.7 × 10 3 ; dispersity of 1.78) was comparable to that of polymers obtained by typical polymerization at 70 °C and significantly exceeding those of polymers obtained by polymerization in high-temperature organic solvents. This implies that the main factor governing the polymerization rate is a kinetic effect due to hydrogen bonding between the carbonyl groups and water molecules; under these conditions, disproportionation termination was suppressed. The polymerization process developed herein using high-temperature water offers the benefits of a short reaction time and a low environmental impact, thus holding great promise for industrial applications.
Who reads High-Speed Synthesis of Thermo-responsive Polymers by Boosted Polymerization of N , N -Diethyl Acrylamide in High-Temperature Water?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Sumito Ishii; Akinori Sezai; Yasuhiro Kohsaka; Shigeru Deguchi; Mitsumasa Osada
- Publisher
- American Chemical Society (ACS)
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)
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