Search Results - "Koh, Yung P."

Enthalpy Recovery of Polystyrene: Does a Long-Term Aging Plateau Exist? by Koh, Yung P, Simon, Sindee L

“…A glass is not in thermodynamic equilibrium below its glass transition temperature (T g), and consequently, its properties, such as enthalpy, volume, and…”
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Effect of Alkyl Chain Branching on Physicochemical Properties of Imidazolium-Based Ionic Liquids by Xue, Lianjie, Gurung, Eshan, Tamas, George, Koh, Yung P, Shadeck, Michael, Simon, Sindee L, Maroncelli, Mark, Quitevis, Edward L

“…The branched ionic liquids (ILs) 1-(iso-alkyl)-3-methylimidazolium bis­[(trifluoromethane)­sulfonyl]­amide ([(N – 2)­mC N‑1C1im]­[NTf2] with N = 3–7) were…”
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Structural relaxation of stacked ultrathin polystyrene films by Koh, Yung P, Simon, Sindee L

“…The Tg depression and kinetic behavior of stacked polystyrene ultrathin films is investigated by differential scanning calorimetry (DSC) and compared with the…”
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Glass transition temperature of thin polycarbonate films measured by flash differential scanning calorimetry by Shamim, Nabila, Koh, Yung P., Simon, Sindee L., McKenna, Gregory B.

“…ABSTRACT Flash differential scanning calorimetry was used to study the glass transition temperature Tg of polycarbonate ultrathin films. The investigation was…”
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Linear Rheology of a Series of Second-Generation Dendronized Wedge Polymers by Qian, Zhiyuan, Koh, Yung P, Pallaka, Madhusudhan R, Chang, Alice B, Lin, Tzu-Pin, Guzmán, Pablo E, Grubbs, Robert H, Simon, Sindee L, McKenna, Gregory B

“…A series of second-generation dendronized wedge polymers were synthesized by ring-opening metathesis polymerization, and the linear viscoelastic response over…”
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Trimerization of Monocyanate Ester in Nanopores by Koh, Yung P, Simon, Sindee L

“…The effects of nanoconfinement on the reaction kinetics and properties of a monocyanate ester and the resulting cyanurate trimer are studied using differential…”
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Calorimetric glass transition temperature and absolute heat capacity of polystyrene ultrathin films by Koh, Yung P., McKenna, Gregory B., Simon, Sindee L.

“…The absolute heat capacity and glass transition temperature (Tg) of unsupported ultrathin films were measured with differential scanning calorimetry with the…”
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Friction and Wear of Pd-Rich Amorphous Alloy (Pd43Cu27Ni10P20) with Ionic Liquid (IL) as Lubricant at High Temperatures by Lee, Jaeho, Yeo, Chang-Dong, Hu, Zhonglue, Thalangama-Arachchige, Vidura D., Kaur, Jagdeep, Quitevis, Edward L., Kumar, Golden, Koh, Yung P., Simon, Sindee

“…The friction and wear behavior of palladium (Pd)-rich amorphous alloy (Pd43Cu27Ni10P20) against 440C stainless steel under ionic liquids as lubricants, i.e.,…”
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Calorimetric Glass Transition of Single Polystyrene Ultrathin Films by Gao, Siyang, Koh, Yung P, Simon, Sindee L

“…The calorimetric glass transition (T g) is measured for single polystyrene ultrathin films using a commercial rapid-scanning chip calorimeter as a function of…”
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Complete Set of Enthalpy Recovery Data Using Flash DSC: Experiment and Modeling by Grassia, Luigi, Koh, Yung P, Rosa, Mattia, Simon, Sindee L

“…Enthalpy recovery of a single polystyrene thin film is quantified by both experiments using Flash DSC and modeling using a new modified TNM model. Experimental…”
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Structural recovery of a single polystyrene thin film using Flash DSC at low aging temperatures by Koh, Yung P., Gao, Siyang, Simon, Sindee L.

“…The structural recovery of a single polystyrene thin film is studied using Flash differential scanning calorimetry (DSC) for aging temperatures ranging from…”
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Enthalpy recovery of ultrathin polystyrene film using Flash DSC by Koh, Yung P., Simon, Sindee L.

“…Enthalpy recovery for a single polystyrene ultrathin film of 20 nm thickness is studied using Flash DSC over an extended time and temperature range. Results…”
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The absolute heat capacity of polymer grafted nanoparticles using fast scanning calorimetry by Sakib, Nazam, Koh, Yung P., Simon, Sindee L.

“…The absolute heat capacity of a matrix‐free polystyrene grafted silica nanocomposite system is investigated using ultrafast Flash differential scanning…”
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An Ultrastable Polymeric Glass: Amorphous Fluoropolymer with Extreme Fictive Temperature Reduction by Vacuum Pyrolysis by Yoon, Heedong, Koh, Yung P, Simon, Sindee L, McKenna, Gregory B

“…Vacuum pyrolysis deposition (VPD) has been used to create an ultrastable polymer glass having a fictive temperature T f of as much as 57 K below the nominal…”
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Thermal and Rheological Analysis of Polystyrene-Grafted Silica Nanocomposites by Sakib, Nazam, Koh, Yung P, Huang, Yucheng, Mongcopa, Katrina Irene S, Le, Amy N, Benicewicz, Brian C, Krishnamoorti, Ramanan, Simon, Sindee L

“…Two matrix-free polystyrene-grafted silica nanocomposite samples with graft chain lengths of 35 and 112 kg/mol are characterized by calorimetry and rheometry,…”
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Prediction of the Synergistic Glass Transition Temperature of Coamorphous Molecular Glasses Using Activity Coefficient Models by Zhao, Xiao, Cheng, Sixue, Koh, Yung P, Kelly, Brandon D, McKenna, Gregory B, Simon, Sindee L

“…The glass transition temperature (T g) of a binary miscible mixture of molecular glasses, termed a coamorphous glass, is often synergistically increased over…”
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Composition‐dependent glass transition temperature in mixtures: Evaluation of configurational entropy models by Lopez, Evelyn, Koh, Yung P., Zapata‐Hincapie, John A., Simon, Sindee L.

“…The composition dependence of the glass transition temperature (Tg) in mixtures remains an important unsolved problem. Here, it is revisited using three model…”
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Kinetics of nanoconfined benzyl methacrylate radical polymerization by Zhai, Chunhao, Koh, Yung P., Vogt, Bryan D., Simon, Sindee L.

“…The effect of nanoconfinement on the kinetics of benzyl methacrylate radical polymerization is investigated using differential scanning calorimetry. Controlled…”
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Synthesis and Characterization of Well-Defined, Tadpole-Shaped Polystyrene with a Single Atom Junction Point by Zhang, Fan, Quirk, Roderic P, Gerislioglu, Selim, Wesdemiotis, Chrys, Bekele, Selemon, Tsige, Mesfin, Koh, Yung P, Simon, Sindee L, Foster, Mark D

“…An efficient method for synthesis of well-defined, well-characterized, tadpole-shaped polystyrene with a single atom junction point that is optimal for the…”
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Amorphization and Crystallization of Hexanitroazobenzene (HNAB) Using Conventional DSC and Flash DSC by Koh, Yung P., Fondren, Zachary T., Denton, Aric A., Simon, Sindee L., McKenna, Gregory B.

“…The present work presents results from an investigation of the glass transition and crystallization behaviors of HNAB tested over more than five orders of…”
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