5 Result(s)
within
R. S. Stein
Materials Science
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Chapter
Physicochemical approaches to the measurement of molecular anisotropy
The measurement of molecular orientation and its specification in some quantitative form are essential to a full understanding of the relationships between a variety of properties (mechanical, dielectric, etc....
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Article
Director dynamics of uniformly aligned nematic liquid crystals in transient shear flow
We have developed a modular rheo-optical apparatus to study the flow properties of liquid crystals. Its main components are shearing device, strong magnetic field, and optical microscope. We performed experime...
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Article
Small-Angle Scattering Investigations of Crystalline Blend Morphologies of Poly(ε-Caprolactone) (PCL)/Polycarbonate (PC) Blends
Crystalline morphologies of poly(ε-caprolactone) (PCL) and deuterated polycarbonate (PC) blends in both the semicrystalline/amorphous state and semicrystalline/semicrystalline state were probed by small-angle ...
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Article
The Volume Fraction Profile of Terminally Adsorbed Polymers
We have used neutron reflectivity to measure the concentration profile of carboxylic acid-terminated polystyrene at the liquid/solid interface. Two isotopic systems were studied: (1) deuterated polystyrene (DP...
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Article
X-Ray Reflectivity and Fluorescence Measurements From Polystyrene-Co-Bromostyrene/Polystyrene Interfaces
X-ray fluorescence using synchrotron radiation at glancing angles of incidence was used to measure interface widths for the highly immiscible polymer blend system polystyrene/polybromostyrene (PS/PBrxS, with brom...
