Výsledky vyhledávání - "J. R. Dorgan"

Design of a monochromatic ellipsometer for studies at the solid–liquid interface

Autor: R. S. Pai‐Panandiker, J. R. Dorgan

Publikováno v: Review of Scientific Instruments. 66:1121-1127

A new design for a monochromatic ellipsometer used for studies at the solid–liquid interface is described. The design of the ellipsometer incorporates two novel features—a special optical glass cell and a thermally controlled sample oven. The ell

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a88541fa28d7eb55f029804493451842
https://doi.org/10.1063/1.1145990

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Adsorption and thin film formation of diblock and triblock copolymers

Autor: Manfred Stamm, J. R. Dorgan

Publikováno v: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 86:143-153

The adsorption of diblock and triblock copolymers of styrene and ethylene oxide, P(S-b-EO), from dilute solution is studied by ellipsometry. The copolymers consist of short poly(ethylene oxide) blocks which adsorb onto a silicon wafer and longer poly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a181299feeff58c10d472669f2df8097
https://doi.org/10.1016/0927-7757(94)02836-2

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End-attaching copolymer adsorption: kinetics and effects of chain architecture

Autor: Chris Toprakcioglu, Lewis J. Fetters, J. R. Dorgan, Manfred Stamm, R. Jerome

Publikováno v: Macromolecules. 26:5321-5330

The adsorption behavior of end-attaching triblock and diblock copolymers from toluene solution onto a silicon wafer with an oxide layer was investigated. The triblock copolymers consist of relatively short PEO end blocks and a much longer PS middle b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5782fd5a13d9aacf0cbdeb9935d0a34a
https://doi.org/10.1021/ma00072a008

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Adsorption kinetics of end-attaching triblock copolymers

Autor: Chris Toprakcioglu, J. R. Dorgan, Manfred Stamm

Publikováno v: Polymer. 34:1554-1557

Ellipsometry is used to obtain the first measurements of the adsorption kinetics and adsorption isotherm of a doubly end-attaching polymer. A triblock copolymer of poly(ethylene oxide)-polystyrene-poly(ethylene oxide) is adsorbed onto silicon dioxide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8e87565244fc9031696a683441943ee2
https://doi.org/10.1016/0032-3861(93)90882-b

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Phase Equilibria in Mixtures Containing Polystyrene and Nematic Liquid Crystals

Autor: J. R. Dorgan, D. S. Soane

Publikováno v: Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics. 188:129-146

The phase behavior of two nematic liquid crystals in a polymer host is studied using the technique of Thermal Optical Analysis. Results are compared to the predictions of a recent molecular model due to Ballauff and found to give very good agreement

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7007f77b7df47c2a244dba685b97ac53
https://doi.org/10.1080/00268949008047811

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