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   https://doi.org/10.1021/acs.jpca.1c08381  

   McCoy, Julia C.; Leger, Spencer J.; Frey, Conrad F.; Vansco, Michael F; Marchetti, Barbara; Karsili, Tolga N. (January 2022, Journal of physical chemistry)
2. Four-Carbon Criegee Intermediate from Isoprene Ozonolysis: Methyl Vinyl Ketone Oxide Synthesis, Infrared Spectrum, and OH Production

   https://doi.org/10.1021/jacs.8b06010  

   Barber, Victoria P.; Pandit, Shubhrangshu; Green, Amy M.; Trongsiriwat, Nisalak; Walsh, Patrick J.; Klippenstein, Stephen J.; Lester, Marsha I. (July 2018, Journal of the American Chemical Society)
3. Photodissociation dynamics of methyl vinyl ketone oxide: A four-carbon unsaturated Criegee intermediate from isoprene ozonolysis

   https://doi.org/10.1063/5.0068664  

   Wang, Guanghan; Liu, Tianlin; Caracciolo, Adriana; Vansco, Michael F.; Trongsiriwat, Nisalak; Walsh, Patrick J.; Marchetti, Barbara; Karsili, Tolga N. V.; Lester, Marsha I. (November 2021, The Journal of Chemical Physics)
4. Electrochemical Fluorination of Vinyl Boronates through Donor‐Stabilized Vinyl Carbocation Intermediates**

   https://doi.org/10.1002/anie.202113972  

   Wigman, Benjamin; Lee, Woojin; Wei, Wenjing; Houk, Kendall N.; Nelson, Hosea M. (February 2022, Angewandte Chemie International Edition)

   Abstract The electrochemical generation of vinyl carbocations from alkenyl boronic esters and boronates is reported. Using easy‐to‐handle nucleophilic fluoride reagents, these intermediates are trapped to form fully substituted vinyl fluorides. Mechanistic studies support the formation of dicoordinated carbocations through sequential single‐electron oxidation events. Notably, this electrochemical fluorination features fast reaction times and Lewis acid‐free conditions. This transformation provides a complementary method to access vinyl fluorides with simple fluoride salts such as TBAF. 

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5. Crosslinked electrospun composite membranes of poly(vinyl alcohol) and poly(vinyl chloride): tunable mechanical properties, porosity and performance

   https://doi.org/10.1002/pi.6224  

   Mithaiwala, Husain; Tronstad, Zachary_T; Korah, Mani_Modayil; Buffington, Alexander; Green, Matthew_D (April 2021, Polymer International)

   Abstract Managing water resources has become one of the most pressing concerns of scientists in both academia and industry. Broadening access to nontraditional water feedstocks, such as brackish water, seawater and wastewater, requires a robust pretreatment process to prolong the lifetime and improve the efficiency of reverse osmosis treatment processes. Herein, pretreatment membranes with tunable hydrophilic characteristics and mechanical properties were developed through a facile and scalable technique. Specifically, poly(vinyl alcohol) (PVA) and poly(vinyl chloride) (PVC) were electrospun at various PVA‐to‐PVC mass ratios and then crosslinked with a poly(ethylene glycol) diacid. Fiber diameters and morphologies were characterized using scanning electron microscopy (SEM); Fourier transform infrared spectroscopy and confocal fluorescence microscopy further confirmed the presence of both polymers. Moreover, a rigorous analysis to map the PVA/PVC concentration was established to accurately determine the relative concentrations of the two polymers on the co‐spun mat. The crosslinking reaction noted above tuned the membrane porosity from 500 to 80 nm, as seen using SEM, and the mechanical properties were probed using tensile testing. The data revealed that the PVC content controlled the mechanical strength; moreover, higher PVA contents were expected to increase water permeation by enhancing the hydrophilicity, but the higher degree of crosslinking in these materials actually reduced water permeation. This work introduces a facile, scalable route for the manufacture of pretreatment membranes with tunable porosity, mechanical properties and water permeation behavior. © 2021 Society of Industrial Chemistry. 

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