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    Academic Journals

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• Liquid-liquid phase separation in organic particles containing one and two organic species: importance of the average O : C

  Authors:Mijung Song, Suhan Ham, Ryan J. Andrews, Yuan You, and Allan K. BertramFrom:Atmospheric Chemistry and Physics (Vol. 18, Issue 16) Peer-Reviewed

  Aug. 22, 2018278 words Author abstract, Bri...

  Recently, experimental studies have shown that liquid-liquid phase separation (LLPS) can occur in organic particles free of inorganic salts. Most of these studies used organic particles consisting of secondary...

• Liquid-liquid phase separation and viscosity within secondary organic aerosol generated from diesel fuel vapors.

  Authors:Mijung Song, Adrian M. Maclean, Yuanzhou Huang, Natalie R. Smith, Sandra L. Blair, Julia Laskin, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 19) Peer-Reviewed

  Oct. 8, 2019387 words Report, Author abstr...

  Information on liquid-liquid phase separation (LLPS) and viscosity (or diffusion) within secondary organic aerosol (SOA) is needed to improve predictions of particle size, mass, reactivity, and cloud nucleating...

• Viscosity and phase state of aerosol particles consisting of sucrose mixed with inorganic salts.

  Authors:Young-Chul Song, Joseph Lilek, Jae Bong Lee, Man Nin Chan, Zhijun Wu, Andreas Zuend, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 13) Peer-Reviewed

  July 7, 2021454 words Article Research on the viscosity and phase state of aerosol particles is essential because of their significant influence on the particle growth rate, equilibration times, and related evolution of mass concentration as well as...

• Effect of inorganic-to-organic mass ratio on the heterogeneous OH reaction rates of erythritol: implications for atmospheric chemical stability of 2-methyltetrols.

  Authors:Rongshuang Xu, Hoi Ki Lam, Kevin R. Wilson, James F. Davies, Mijung Song, Wentao Li, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 6) Peer-Reviewed

  Mar. 31, 2020357 words Brief article The 2-methyltetrols have been widely chosen as chemical tracers for isoprene-derived secondary organic aerosols. While they are often assumed to be relatively unreactive, a laboratory study reported that pure erythritol...

• Liquid-liquid phase separation and morphologies in organic particles consisting of α-pinene and β-caryophyllene ozonolysis products and mixtures with commercially available organic compounds.

  Authors:Young-Chul Song, Ariana G. Bé, Scot T. Martin, Franz M. Geiger, Allan K. Bertram, Regan J. Thomson, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 19) Peer-Reviewed

  Oct. 2, 2020289 words Brief article Liquid-liquid phase separation (LLPS) in organic aerosol particles can impact several properties of atmospheric particulate matter, such as cloud condensation nuclei (CCN) properties, optical properties, and...

• The effect of hydroxyl functional groups and molar mass on the viscosity of non-crystalline organic and organic-water particles

  Authors:James W. Grayson, Erin Evoy, Mijung Song, Yangxi Chu, Adrian Maclean, Allena Nguyen, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 13) Peer-Reviewed

  July 13, 2017419 words Brief article, Repor... The viscosities of three polyols and three saccharides, all in the non-crystalline state, have been studied. Two of the polyols (2-methyl-1,4-butanediol and 1,2,3-butanetriol) were studied under dry conditions, the...

• Liquid-liquid phase separation in particles containing secondary organic material free of inorganic salts

  Authors:Mijung Song, Pengfei Liu, Scot T. Martin, and Allan K. BertramFrom:Atmospheric Chemistry and Physics (Vol. 17, Issue 18) Peer-Reviewed

  Sept. 25, 2017238 words Author abstract, Bri... Particles containing secondary organic material (SOM) are ubiquitous in the atmosphere and play a role in climate and air quality. Recently, research has shown that liquid-liquid phase separation (LLPS) occurs at high...

• Relative humidity-dependent viscosity of secondary organic material from toluene photo-oxidation and possible implications for organic particulate matter over megacities

  Authors:Mijung Song, Pengfei F. Liu, Sarah J. Hanna, Rahul A. Zaveri, Katie Potter, Yuan You, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 14) Peer-Reviewed

  July 19, 2016333 words Brief article To improve predictions of air quality, visibility, and climate change, knowledge of the viscosities and diffusion rates within organic particulate matter consisting of secondary organic material (SOM) is required. Most...

• Liquid-liquid phase separation in secondary organic aerosol particles produced from α-pinene ozonolysis and α-pinene photooxidation with/without ammonia.

  Authors:Suhan Ham, Zaeem Bin Babar, Jae Bong Lee, Ho-Jin Lim, and Mijung SongFrom:Atmospheric Chemistry and Physics (Vol. 19, Issue 14) Peer-Reviewed

  July 22, 2019213 words Author abstract, Tec...

  Recently, liquid-liquid phase separation (LLPS) of secondary organic aerosol (SOA) particles free of inorganic salts has been intensively studied due to the importance of cloud condensation nuclei (CCN) properties. In...

• Effects of liquid-liquid phase separation and relative humidity on the heterogeneous OH oxidation of inorganic-organic aerosols: insights from methylglutaric acid and ammonium sulfate particles.

  Authors:Hoi Ki Lam, Rongshuang Xu, Jack Choczynski, James F. Davies, Dongwan Ham, Mijung Song, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 3) Peer-Reviewed

  Feb. 11, 2021453 words Article Organic compounds residing near the surface of atmospheric aerosol particles are exposed to chemical reactions initiated by gas-phase oxidants, such as hydroxyl (OH) radicals. Aqueous droplets composed of inorganic salts...

• Effects of inorganic salts on the heterogeneous OH oxidation of organic compounds: insights from methylglutaric acid-ammonium sulfate

  Authors:Hoi Ki Lam, Sze Man Shum, James F. Davies, Mijung Song, Andreas Zuend, and Man Nin ChanFrom:Atmospheric Chemistry and Physics (Vol. 19, Issue 14) Peer-Reviewed

  July 30, 2019505 words Author abstract, Bri...

  Atmospheric particles, consisting of inorganic salts, organic compounds and a varying amount of water, can continuously undergo heterogeneous oxidation initiated by gas-phase oxidants at the particle surface,...