Search Results - "Simon, Sindee"
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Using 20-million-year-old amber to test the super-Arrhenius behaviour of glass-forming systems
Published in Nature communications (2013)“…Fossil amber offers the opportunity to investigate the dynamics of glass-forming materials far below the nominal glass transition temperature. This is…”
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50th Anniversary Perspective: Challenges in the Dynamics and Kinetics of Glass-Forming Polymers
Published in Macromolecules (12-09-2017)“…The phenomenology of the glass transition and the associated behavior in the near liquid and glassy states are detailed, including the cooling rate dependence…”
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3
Synthesis of polymers in nanoreactors: A tool for manipulating polymer properties
Published in Polymer (Guilford) (21-12-2020)“…The use of nanoreactors to confine monomers and synthesize polymers results in changes in the reaction kinetics and polymer properties making nanoconfinement a…”
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Signatures of Structural Recovery in Polystyrene by Nanocalorimetry
Published in Macromolecules (22-03-2016)“…The intrinsic isotherm, asymmetry of approach, and memory effect experiments are performed for a high fictive temperature polystyrene glass in enthalpy space…”
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5
Mobility of Pressure-Densified and Pressure-Expanded Polystyrene Glasses: Dilatometry and a Test of KAHR Model
Published in Macromolecules (28-09-2021)“…The structural recovery of pressure-densified (PDG) and, for the first time, pressure-expanded (PEG) glasses are experimentally investigated using…”
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Kinetic study of alkyl methacrylate polymerization in nanoporous confinement over a broad temperature range
Published in Polymer (Guilford) (28-09-2020)“…The effect of nanoconfinement on the free radical polymerization of ethyl methacrylate (EMA) and n-butyl-methacrylate (BMA) with di-tert-butyl peroxide (DtBP)…”
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Calorimetric Glass Transition of Single Polystyrene Ultrathin Films
Published in Macromolecules (22-01-2013)“…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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8
Enthalpy Recovery of Polystyrene: Does a Long-Term Aging Plateau Exist?
Published in Macromolecules (23-07-2013)“…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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9
Rheology of Imidazolium-Based Ionic Liquids with Aromatic Functionality
Published in The journal of physical chemistry. B (03-09-2015)“…A series of imidazolium-based ionic liquids with cyclic and aromatic groups and a bis[(trifluoromethane)sulfonyl]amide anion were characterized using…”
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10
Trimerization Reaction Kinetics and T g Depression of Polycyanurate under Nanoconfinement
Published in Macromolecules (14-07-2015)“…Trimerization of a mixture containing a mono- and difunctional cyanate ester is investigated under the nanoporous confinement of silanized hydrophobic…”
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11
Complete Set of Enthalpy Recovery Data Using Flash DSC: Experiment and Modeling
Published in Macromolecules (27-02-2018)“…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
Published in Polymer (Guilford) (25-07-2016)“…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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13
Enthalpy recovery of ultrathin polystyrene film using Flash DSC
Published in Polymer (Guilford) (09-05-2018)“…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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14
Origin of the broad endothermic peak observed at low temperatures for polystyrene and metals in Flash differential scanning calorimetry
Published in Polymer engineering and science (01-09-2022)“…The glass transition behavior of polystyrene as a function of different cooling rates with scanning to two different end temperatures, 30°C and −80°C, was…”
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15
Modeling volume relaxation of amorphous polymers: Modification of the equation for the relaxation time in the KAHR model
Published in Polymer (Guilford) (19-07-2012)“…An expression for the relaxation time, τ, which applies both in the liquid and in the glassy state, is proposed and coupled with the kinetic equation for the…”
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16
The absolute heat capacity of polymer grafted nanoparticles using fast scanning calorimetry
Published in Polymer engineering and science (01-09-2022)“…The absolute heat capacity of a matrix‐free polystyrene grafted silica nanocomposite system is investigated using ultrafast Flash differential scanning…”
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17
Bulk and shear rheology of silica/polystyrene nanocomposite: Reinforcement and dynamics
Published in Journal of polymer science. Part B, Polymer physics (01-05-2015)“…Bulk and shear rheological studies were performed on a 10 wt % silica nanoparticle‐filled polystyrene nanocomposite. The limiting moduli in glassy and rubbery…”
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An Ultrastable Polymeric Glass: Amorphous Fluoropolymer with Extreme Fictive Temperature Reduction by Vacuum Pyrolysis
Published in Macromolecules (13-06-2017)“…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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Effect of Alkyl Chain Branching on Physicochemical Properties of Imidazolium-Based Ionic Liquids
Published in Journal of chemical and engineering data (10-03-2016)“…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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Methyl methacrylate polymerization in nanoporous confinement
Published in Polymer (Guilford) (18-08-2011)“…The effect of nanoconfinement on the rate of isothermal polymerization of methyl methacrylate (MMA) polymerization is investigated using differential scanning…”
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