Search Results - "Lohse, D. J"

Connection between Polymer Molecular Weight, Density, Chain Dimensions, and Melt Viscoelastic Properties by Fetters, L. J, Lohse, D. J, Richter, D, Witten, T. A, Zirkel, A

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Small Angle Neutron Scattering Investigations of Melt Miscibility and Phase Segregation in Blends of Linear and Branched Polyethylenes as a Function of the Branch Content by Alamo, R. G, Graessley, W. W, Krishnamoorti, R, Lohse, D. J, Londono, J. D, Mandelkern, L, Stehling, F. C, Wignall, G. D

“…We have performed a series of small angle neutron scattering (SANS) experiments on blends of linear and branched polyethylenes to investigate the level of…”
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Well-Defined, Model Long Chain Branched Polyethylene. 2. Melt Rheological Behavior by Lohse, D. J, Milner, S. T, Fetters, L. J, Xenidou, M, Hadjichristidis, N, Mendelson, R. A, García-Franco, C. A, Lyon, M. K

“…In this paper, we examine the melt rheology of well-defined, model polymers where the long chain branching (LCB) is precisely known from the synthesis. All of…”
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Thermodynamic interactions in model polyolefin blends obtained by small-angle neutron scattering by Balsara, N. P, Fetters, L. J, Hadjichristidis, N, Lohse, D. J, Han, C. C, Graessley, W. W, Krishnamoorti, R

“…The dependence of Flory--Huggins interaction parameter sub on temperature, composition, and chain length was investigated for binary blends of amorphous model…”
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Morphology and miscibility of miktoarm styrene-diene copolymers and terpolymers by Hadjichristidis, N, Iatrou, H, Behal, S. K, Chludzinski, J. J, Disko, M. M, Garner, R. T, Liang, K. S, Lohse, D. J, Milner, S. T

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Entangled Dendritic Polymers and Beyond:  Rheology of Symmetric Cayley-Tree Polymers and Macromolecular Self-Assemblies by van Ruymbeke, E, Orfanou, K, Kapnistos, M, Iatrou, H, Pitsikalis, M, Hadjichristidis, N, Lohse, D. J, Vlassopoulos, D

“…We present linear rheological data on a series of anionically synthesized, model symmetric Cayley-tree polybutadienes having 2 or 3 generations with entangled…”
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Effect of Pressure on Polymer Blend Miscibility:  A Temperature−Pressure Superposition by Rabeony, M, Lohse, D. J, Garner, R. T, Han, S. J, Graessley, W. W, Migler, K. B

“…In this paper, we report on how interaction strength varies with pressure and temperature for several polyolefin mixtures. We find that the interaction…”
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Pressure-Volume-Temperature properties of polyolefin liquids and their melt miscibility by Han, S. J., Lohse, D. J., Condo, P. D., Sperling, L. H.

“…The pressure–volume–temperature (P–V–T) properties of a number of metallocene‐produced polyolefins were measured experimentally at 10 MPa ≤ P ≤ 200 MPa and…”
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Melt Chain Dimensions of Poly(ethylene−1-butene) Copolymers via Small Angle Neutron Scattering by Fetters, L. J, Graessley, W. W, Krishnamoorti, R, Lohse, D. J

“…The radii of gyration for a series of poly(ethylene−1-butene) copolymers of varying ethyl branch content were measured as a function of temperature in the melt…”
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Short Chain Branching Effect on the Cloud-Point Pressures of Ethylene Copolymers in Subcritical and Supercritical Propane by Han, S. J, Lohse, D. J, Radosz, M, Sperling, L. H

“…The cloud-point pressures of copolymers of ethylene with propylene, butene, hexene, and octene in propane were measured with a variable-volume optical batch…”
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Anomalous mixing behavior of polyisobutylene with other polyolefins by Krishnamoorti, R, Graessley, W. W, Fetters, L. J, Garner, R. T, Lohse, D. J

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Thermodynamics of Mixing for Blends of Model Ethylene-Butene Copolymers by Graessley, W. W, Krishnamoorti, R, Balsara, N. P, Butera, R. J, Fetters, L. J, Lohse, D. J, Schulz, D. N, Sissano, J. A

“…This paper describes a study of thermodynamic interactions in binary blends of A[sub y]B[sub B[minus]y] copolymers. The blend components are hydrogenated…”
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Morphologies of blends of isotactic polypropylene and ethylene copolymer by rapid expansion of supercritical solution and isobaric crystallization from supercritical solution by Han, S. J., Lohse, D. J., Radosz, M., Sperling, L. H.

“…Isotactic polypropylene (iPP) and ethylene‐butene (EB) copolymers were dissolved in supercritical propane and precipitated by rapid expansion of supercritical…”
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Morphology of semicrystalline block copolymers: polyethylene-b-atactic-polypropylene by Hong, S., Bushelman, A.A., MacKnight, W.J., Gido, S.P., Lohse, D.J., Fetters, L.J.

“…Transmission electron microscopy (TEM) and electron diffraction (ED) are used to study the morphology of a semicrystalline polyolefin diblock copolymer…”
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Packing Length Influence in Linear Polymer Melts on the Entanglement, Critical, and Reptation Molecular Weights by Fetters, Lewis J, Lohse, David J, Milner, Scott T, Graessley, William W

“…We have shown in previous studies that the entanglement molecular weight for a polymer melt, M e, is related by a power law to p, the packing length of the…”
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Equations of state and predictions of miscibility for hydrocarbon polymers by Walsh, D. J, Graessley, W. W, Datta, Sudhin, Lohse, D. J, Fetters, L. J

“…The pressure--volume--temperature properties of a number of hydrocarbon polymers, including a series of ethylene--propylene copolymers, have been measured…”
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Chain dimensions and entanglement spacings in dense macromolecular systems by Fetters, Lewis J., Lohse, David J., Graessley, William W.

“…In this article, we reexamine and extend a relationship proposed earlier between entanglement density and chain dimensions in polymer melts. The power‐law…”
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Thermoplastic Vulcanizates from Isotactic Polypropylene and Ethylene−Propylene−Diene Terpolymer in Supercritical Propane:  Synthesis and Morphology by Han, S. J, Lohse, D. J, Radosz, M, Sperling, L. H

“…New thermoplastic vulcanizates (TPV's) have been synthesized from isotactic polypropylene and ethylene−propylene−diene terpolymer (EPDM) in a supercritical…”
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Graft copolymer compatibilizers for blends of polypropylene and ethylene-propylene copolymers by Lohse, David J, Datta, Sudhin, Kresge, Edward N

“…A graft polymer with isotactic polypropylene (iPP) arms pendant from an ethylene--propylene (EP) copolymer backbone has been made and shown to effectively…”
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Miscibility in blends of model polyolefins and corresponding diblock copolymers: thermal analysis studies by Lohse, D. J, Fetters, L. J, Doyle, M. J, Wang, H. C, Kow, C

“…The miscibility of polymers that are models for polyolefins was examined by thermal analysis. Analogs of ethylene--propylene copolymer (PEP) were made by the…”
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