Search Results - "Colby, Ralph H."

Structure and linear viscoelasticity of flexible polymer solutions: comparison of polyelectrolyte and neutral polymer solutions by Colby, Ralph H.

“…The current state of understanding for solution conformations of flexible polymers and their linear viscoelastic response is reviewed. Correlation length, tube…”
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Rheology of Entangled Polyelectrolyte Solutions by Han, Aijie, Colby, Ralph H

“…Polyelectrolyte solution dynamics have been carefully studied experimentally and theoretically for unentangled solutions and thought to be reasonably well…”
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Glass transition temperature from the chemical structure of conjugated polymers by Xie, Renxuan, Weisen, Albree R., Lee, Youngmin, Aplan, Melissa A., Fenton, Abigail M., Masucci, Ashley E., Kempe, Fabian, Sommer, Michael, Pester, Christian W., Colby, Ralph H., Gomez, Enrique D.

“…The glass transition temperature ( T g ) is a key property that dictates the applicability of conjugated polymers. The T g demarks the transition into a…”
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Viscoelasticity of Reversible Gelation for Ionomers by Chen, Quan, Huang, Chongwen, Weiss, R. A, Colby, Ralph H

“…Linear viscoelasticity (LVE) of low-ion-content and low-molecular-weight (nonentangled) randomly sulfonated polystyrene shows a sol–gel transition when the…”
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Electrostatic and Hydrophobic Interactions in NaCMC Aqueous Solutions: Effect of Degree of Substitution by Lopez, Carlos G, Colby, Ralph H, Cabral, João T

“…The rheology of water-soluble polyelectrolytes at intermediate and high concentrations is controlled by entanglement, hydrophobic, and electrostatic…”
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Viscosity and Scaling of Semiflexible Polyelectrolyte NaCMC in Aqueous Salt Solutions by Lopez, Carlos G, Colby, Ralph H, Graham, Peter, Cabral, Joao T

“…We investigate the viscosity dependence on concentration and molecular weight of semiflexible polyelectrolyte sodium carboxy­methylcellulose (NaCMC) in aqueous…”
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Network dynamics in nanofilled polymers by Baeza, Guilhem P., Dessi, Claudia, Costanzo, Salvatore, Zhao, Dan, Gong, Shushan, Alegria, Angel, Colby, Ralph H., Rubinstein, Michael, Vlassopoulos, Dimitris, Kumar, Sanat K.

“…It is well accepted that adding nanoparticles (NPs) to polymer melts can result in significant property improvements. Here we focus on the causes of mechanical…”
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Hierarchical Sticker and Sticky Chain Dynamics in Self-Healing Butyl Rubber Ionomers by Mordvinkin, Anton, Suckow, Marcus, Böhme, Frank, Colby, Ralph H, Creton, Costantino, Saalwächter, Kay

“…We present a detailed comparison of the microscopic dynamics and the macroscopic mechanical behavior of novel butyl rubber ionomers with tunable dynamics of…”
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Mechanical Reinforcement of Polymer Nanocomposites from Percolation of a Nanoparticle Network by Chen, Quan, Gong, Shushan, Moll, Joseph, Zhao, Dan, Kumar, Sanat K, Colby, Ralph H

“…Nanometer-sized particles that are well dispersed in a polymer melt, presumably due to strongly favorable particle–polymer interactions, can form fractal…”
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Onset of Flow-Induced Crystallization Kinetics of Highly Isotactic Polypropylene by Hamad, Fawzi G, Colby, Ralph H, Milner, Scott T

“…Brief intervals of shear prior to a temperature quench accelerate crystallization, resulting in much smaller spherulites. Crystallization kinetics of five…”
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Lifetime of Flow-Induced Precursors in Isotactic Polypropylene by Hamad, Fawzi G., Colby, Ralph H., Milner, Scott T.

“…Brief intervals of strong flow stretch chains in a semicrystalline polymer melt to form flow-induced precursors, which accelerate crystallization kinetics and…”
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Structure of sodium carboxymethyl cellulose aqueous solutions: A SANS and rheology study by Lopez, Carlos G, Rogers, Sarah E, Colby, Ralph H, Graham, Peter, Cabral, João T

“…We report a small angle neutron scattering (SANS) and rheology study of cellulose derivative polyelectrolyte sodium carboxymethyl cellulose with a degree of…”
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Glass Transition Temperature of Conjugated Polymers by Oscillatory Shear Rheometry by Xie, Renxuan, Lee, Youngmin, Aplan, Melissa P, Caggiano, Nicholas J, Müller, Christian, Colby, Ralph H, Gomez, Enrique D

“…The stiff backbones of conjugated polymers can lead to a rich phase behavior that includes both crystalline and liquid crystalline phases, making measurements…”
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Synthesis and Lithium Ion Conduction of Polysiloxane Single-Ion Conductors Containing Novel Weak-Binding Borates by Liang, Siwei, Choi, U Hyeok, Liu, Wenjuan, Runt, James, Colby, Ralph H

“…Three borate monomers: lithium triphenylstyryl borate (B1), a variant with three ethylene oxides between the vinyl and the borate (B2) and a third with…”
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Segmental Dynamics and Dielectric Constant of Polysiloxane Polar Copolymers as Plasticizers for Polymer Electrolytes by Choi, U Hyeok, Liang, Siwei, Chen, Quan, Runt, James, Colby, Ralph H

“…Dielectric relaxation spectroscopy was used to investigate the segmental dynamics of a series of siloxane-based polar copolymers combining pendant cyclic…”
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Anisotropic self-assembly of spherical polymer-grafted nanoparticles by Kumar, Sanat K, Akcora, Pinar, Liu, Hongjun, Moll, Joseph, Li, Yu, Benicewicz, Brian C, Schadler, Linda S, Acehan, Devrim, Panagiotopoulos, Athanassios Z, Pryamitsyn, Victor, Ganesan, Venkat, Ilavsky, Jan, Thiyagarajan, Pappanan, Colby, Ralph H, Douglas, Jack F

“…It is easy to understand the self-assembly of particles with anisotropic shapes or interactions (for example, cobalt nanoparticles or proteins) into highly…”
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Solvent-non-solvent rapid-injection for preparing nanostructured materials from micelles to hydrogels by Lang, Chao, LaNasa, Jacob A., Utomo, Nyalaliska, Xu, Yifan, Nelson, Melissa J., Song, Woochul, Hickner, Michael A., Colby, Ralph H., Kumar, Manish, Hickey, Robert J.

“…Due to their distinctive molecular architecture, ABA triblock copolymers will undergo specific self-assembly processes into various nanostructures upon…”
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Dual Nakamura model for primary and secondary crystallization applied to nonisothermal crystallization of poly(ether ether ketone) by Seo, Jiho, Zhang, Xiaoshi, Schaake, Richard P., Rhoades, Alicyn M., Colby, Ralph H.

“…Non‐isothermal crystallization kinetics has been traditionally predicted using the Nakamura crystal growth model, which is an integral form of the Avrami…”
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Molecular Mobility, Ion Mobility, and Mobile Ion Concentration in Poly(ethylene oxide)-Based Polyurethane Ionomers by Fragiadakis, Daniel, Dou, Shichen, Colby, Ralph H, Runt, James

“…The segmental and local chain dynamics as well as the transport of Na+ and Li+ cations in a series of model poly(ethylene oxide)-based polyurethane ionomers is…”
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Transition in Crystal Morphology for Flow-Induced Crystallization of Isotactic Polypropylene by Hamad, Fawzi G, Colby, Ralph H, Milner, Scott T

“…Deformation applied to a semicrystalline polymer melt prior to quenching can dramatically increase the concentration of nuclei and even transform the final…”
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