Roth Research Group


 

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Connie Roth

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Research

Publications

Publications

2017

B.L. Kasavan, R.R. Baglay, and C.B. Roth, "Local Glass Transition Temperature Tg(z) Profile in Polystyrene next to Polybutadiene With and Without Plasticization Effects," Macromolecular Chemistry and Physics 2017, in press.

R.R. Baglay and C.B. Roth, "Experimental Study of the Influence of Periodic Boundary Conditions: Effects of Finite Size and Faster Cooling Rates on Dissimilar Polymer-Polymer Interfaces," ACS Macro Letters 2017, 6, 887-891. [Link]

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] (Highlighted as AIP Scilight)
 

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]