Roth Research Group


 

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Connie Roth

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Research

Publications

Publications

2017

R.R. Baglay and C.B. Roth, "Local Glass Transition Temperature Tg(z) of Polystyrene Next to Different Polymers: Hard vs. Soft Confinement," Journal of Chemical Physics 2017, 146, 203307. [Link]
 

2016

C.B. Roth, J.E. Pye, and R.R. Baglay, "Correlating Glass Transition and Physical Aging in Thin Polymer Films," Chapter 5 in Polymer Glasses, edited by Connie B. Roth (CRC Press, Taylor & Francis Group, December 2016), p. 181-203.

C.B. Roth and R.R. Baglay, "Fundamentals of Polymers and Glasses," Chapter 1 in Polymer Glasses, edited by Connie B. Roth (CRC Press, Taylor & Francis Group, December 2016), p. 3-22.

X. Huang and C.B. Roth, "Changes in the Temperature-Dependent Specific Volume of Supported Polystyrene Films with Film Thickness," Journal of Chemical Physics 2016, 144, 234903. [Link] (Highlighted as an Editor's Pick)
 

2015

R.R. Baglay and C.B. Roth, "Communication: Experimentally Determined Profile of Local Glass Transition Temperature Across a Glassy-Rubbery Polymer Interface with a Tg Difference of 80 K," Journal of Chemical Physics 2015, 143, 111101. [Link]

J.E. Pye and C.B. Roth, "Above, Below, and In-Between the Two Glass Transitions of Ultrathin Free-Standing Polystyrene Films: Thermal Expansion Coefficient and Physical Aging," J. Polym. Sci., Part B: Polym. Phys. 2015, 53, 64-75. [Link]

C.M. Evans, S. Kim, C.B. Roth, R.D. Priestley, L.J. Broadbelt, J.M. Torkelson, "Role of neighboring domains in determining the magnitude and direction of Tg-confinement effects in binary, immiscible polymer systems," Polymer 2015, 80, 180-187. [Link]
 

2014

A. Kriisa and C.B. Roth, "Electric Fields Enhance Miscibility of Polystyrene / Poly(vinyl methyl ether) Blends," Journal of Chemical Physics 2014, 141, 134908. [Link]

L.A.G. Gray and C.B. Roth, "Stability of Polymer Glasses Vitrified Under Stress," Soft Matter 2014, 10, 1572-1578. [Link]
 

2013

P.M. Rauscher, J.E. Pye, R.R. Baglay, and C.B. Roth, "Effect of Adjacent Rubbery Layers on the Physical Aging of Glassy Polymers," Macromolecules 2013, 46, 9806-9817. [Link]

J.E. Pye and C.B. Roth, "Physical Aging of Polymer Films Quenched and Measured Free-Standing via Ellipsometry: Controlling Stress Imparted by Thermal Expansion Mismatch between Film and Support," Macromolecules 2013, 46, 9455-9463. [Link]
 

2012

L.A.G. Gray, S.W. Yoon, W.A. Pahner, J.E. Davidheiser, and C.B. Roth, "Importance of Quench Conditions on the Subsequent Physical Aging Rate of Glassy Polymer Films," Macromolecules 2012, 45, 1701-1709. [Link]

A. Kriisa, S.S. Park, and C.B. Roth, "Characterization of Phase Separation of Polystyrene / Poly(vinyl methyl ether) Blends Using Fluorescence," J. Polym. Sci., Part B: Polym. Phys. 2012, 50, 250-256. [Link]
 

2011

J.E. Pye and C.B. Roth, "Two Simultaneous Mechanisms Causing Glass Transition Temperature Reductions in High Molecular Weight Free-Standing Polymer Films as Measured by Transmission Ellipsometry," Physical Review Letters 2011, 107, 235701. [Link]
 

2010

C.B. Roth, "Mobility and Stability of Glasses," J. Polym. Sci., Part B: Polym. Phys. 2010, 48, 2558-2560. [Link]

J.E. Pye, K.A. Rohald, E.A. Baker, and C.B. Roth, "Physical Aging in Ultrathin Polystyrene Films: Evidence of a Gradient in Dynamics at the Free Surface and Its Connection to the Glass Transition Temperature Reductions," Macromolecules 2010, 43, 8296-8303. [Link]

S. Kim, M.K. Mundra, C.B. Roth, and J.M. Torkelson, "Suppression of the Tg-Nanoconfinement Effect in Thin Poly(vinyl acetate) Films by Sorbed Water," Macromolecules 2010, 43, 5158-5161. [Link]
 

2009

E.A. Baker, P. Rittigstein, J.M. Torkelson, and C.B. Roth, "Streamlined Ellipsometry Procedure for Characterizing Physical Aging Rates of Thin Polymer Films," J. Polym. Sci., Part B: Polym. Phys. 2009, 47, 2509-2519. [Link]

S. Kim, S.A. Hewlett, C.B. Roth, and J.M. Torkelson, "Confinement Effects on Glass Transition Temperature, Transition Breadth, and Expansivity: Comparison of Ellipsometry and Fluorescence Measurements on Polystyrene Films," Eur. Phys. J. E. 2009, 30, 83-92. [Link]
 

2008

R.W. Sandoval, D.E. Williams, J. Kim, C.B. Roth, and J.M. Torkelson, "Critical Micelle Concentrations of Block and Gradient Copolymers in Homopolymer: Effects of Sequence Distribution, Composition and Molecular Weight," J. Polym. Sci., Part B: Polym. Phys. 2008, 46, 2672-2682. [Link]

S. Kim, C.B. Roth, and J.M. Torkelson, "Effect of Nanoscale Confinement on the Glass Transition Temperature of Free-Standing Polymer Films: Novel, Self-Referencing Fluorescence Method," J. Polym. Sci., Part B: Polym. Phys. 2008, 46, 2754-2764. [Link]
 

2007

C.L.H. Wong, J. Kim, C.B. Roth, and J.M. Torkelson, "Comparison of Critical Micelle Concentrations of Gradient Copolymer and Block Copolymer in Homopolymer: Novel Characterization by Intrinsic Fluorescence," Macromolecules 2007, 40, 5631-5633. [Link]

C.B. Roth and J.M. Torkelson, "Selectively Probing the Glass Transition Temperature in Multilayer Polymer Films: Equivalence of Block Copolymers and Multilayer Films of Different Homopolymers," Macromolecules 2007, 40, 3328-3336. [Link]

C.B. Roth, K.L. McNerny, W.F. Jager, and J.M. Torkelson, "Eliminating the Enhanced Mobility at the Free Surface of Polystyrene: Fluorescence Studies of the Glass Transition Temperature in Thin Bilayer Films of Immiscible Polymers," Macromolecules 2007, 40, 2568-2574. [Link]
 

2006

C.B. Roth and J.R. Dutcher, "Hole growth as a micro-rheological probe to measure the viscosity of polymers confined to thin films", Journal of Polymer Science, Part B: Polymer Physics 2006, 44, 3011-3021. [Link]

C.B. Roth, A. Pound, S.W. Kamp, C.A. Murray, and J.R. Dutcher, "Molecular weight dependence of the glass transition temperature of freely-standing poly(methyl methacrylate) films", European Physical Journal E 2006, 20, 441-448. [Link]
 

2005

C.B. Roth, B. Deh, B.G. Nickel, and J.R. Dutcher, "Evidence of convective constraint release during hole growth in freely standing polystyrene films at low temperatures", Physical Review E 2005, 72, 021802. [Link]

C.B. Roth and J.R. Dutcher, "Hole growth in freely-standing polystyrene films probed using a differential pressure experiment", Physical Review E 2005, 72, 021803. [Link]

C.B. Roth and J.R. Dutcher, "Glass transition and chain mobility in thin polymer films", Journal of Electroanalytical Chemistry 2005, 584, 13-22. [Link]

C.B. Roth and J.R. Dutcher, "Mobility on Different Length Scales in Thin Polymer Films", in Soft Materials: Structure and Dynamics , Eds. J.R. Dutcher and A.G. Marangoni (Marcel Dekker, N.Y., Chap. 1, pp. 1-38, 2005). [PDF]
 

2003

C.B. Roth and J.R. Dutcher, "Glass Transition Temperature of Freely-Standing Films of Atactic Poly(methyl methacrylate)", European Physical Journal E 2003, 12, S103-S107. [Link]

C.B. Roth, B.G. Nickel, J.R. Dutcher, and K. Dalnoki-Veress, "Differential Pressure Experiment to Probe Hole Growth in Freely-Standing Polymer Films", Review of Scientific Instruments 2003, 74, 2796-2804. [Link]
 

2000

J.R. Dutcher, K. Dalnoki-Veress, B.G. Nickel, and C.B. Roth, "Instabilities in Thin Polymer Films: From Pattern Formation to Rupture", Macromolecular Symposia 2000, 159, 143-150. [Link]
 

1999

K. Dalnoki-Veress, B.G. Nickel, C. Roth, and J.R. Dutcher, "Hole Formation and Growth in Freely-Standing Polystyrene Films", Physical Review E 1999, 59, 2153-2156. [Link]