Redispersible polymers are prepared in supercritical carbon dioxide

Tuzova, S. Yu.; Nikolaev, A. Yu.; Никитин, Л. Н.; Pestrikova, Anastasiya A.; Gorbunova, I. Yu.

doi:10.1134/s0036023615060170

Cited by 2 publications

(3 citation statements)

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“…The supercritical fluids are considered to be a potential alternative to the organic solvents mainly due to their unique physical characteristics and peculiar chemical properties. The carbon dioxides and water are among the super critical inorganic fluids (supercritical carbon dioxide (scCO2) and supercritical water (scH2O) most widely used for the preparation of large number of organic compounds and inorganic substances [8].…”

Section: 1mentioning

confidence: 99%

“…The polymer based chemistry offers the most promising applications of supercritical carbon dioxide (scCO2) due to its ability to dissolve the large number of organic compounds. It is also prerequisite for the synthesis of large number of industrially valuable polymeric compounds [8]. The supercritical carbon dioxide (scCO2) as a green solvent, can also be used in the polymer synthesis, processing aspects and applications that are now appearing as a growing area for the industrial processes [10].…”

Section: Supercritical Carbon Dioxidementioning

confidence: 99%

“…The washing of resulting polymers, using the fresh fluid solution is ultimately required to enhance the purity of final product. These types of useful applications of supercritical carbon dioxide (scCO2) ensures its excessive usage in polymer chemistry and industrial processes [8].…”

Section: Supercritical Carbon Dioxidementioning

confidence: 99%

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Review On Polymer Processing Techniques Using Supercritical Carbon Dioxide (ScCO2)

Nadeem¹

2021

Pakistan Journal of Chemistry

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Supercritical fluids (SCFs) are the materials formed at the values of temperature and pressure, above its critical point. Some supercritical fluids can replace the toxic industrial solvents. Unique properties of the supercritical fluids especially supercritical carbon dioxide (scCO2) provide the various opportunities in the field of polymerization. The supercritical carbon dioxide (scCO2) is used as a monomer, reaction medium and catalyst for the synthesis of polymers. Various processes for the polymer synthesis have been discussed in this review article such as homogeneous polymerization, step growth polymerization, emission polymerization, dispersion polymerization and electrochemical synthesis of conducting polymers. The polymers can be readily separated from the reaction mixture as the particles or drops, in the presence of supercritical carbon dioxide (scCO2) during the polymerization. In this review, some applications including impregnation and supercritical dyeing, purification of polymers, polymer modifications and particle production has been evaluated to study the efficiency of super critical fluids on the polymer production. This article also demonstrates the effects of various parameters on the process of polymerization such as pH, temperature and pressure. Generally, by increasing the values of pH or the reaction media, the viscosity of prepared polymers tends to increase. The characterization techniques such as Fourier Transform Infrared (FTIR) spectroscopy, X-Ray Diffraction (XRD), 1 H Nuclear Magnetic Resonance ( 1 HNMR) and Differential Scanning Calorimetry (DSC) are also discussed for the determination of chemical arrangement, structure of polymers and functional groups.

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Section: 1mentioning

confidence: 99%

Section: Supercritical Carbon Dioxidementioning

confidence: 99%