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Search Publications by: Charles C. Han (Assoc)

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Displaying 51 - 75 of 110

Structure and Morphology Development in Syndiotactic Polypropylene During Isothermal Crystallization and Subsequent Melting

December 1, 2001
Author(s)
Z G. Wang, X H. Wang, B S. Hsiao, R A. Phillips, Brian Rodriguez, S Srinivas, Haonan Wang, Charles C. Han
Structure and morphology development during isothermal crystallization and subsequent melting of syndiotactic polypropylene (sPP) was studied by time-resolved simultaneous small-angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) methods

Time-Resolved Isothermal Crystallization of Absorbable PGA-co-PLA Copolymer by Synchrotron Small-Angle X-Ray Scattering and Wide-Angle X-Ray Diffraction

October 1, 2001
Author(s)
Z G. Wang, X H. Wang, B S. Hsiao, S Andjelic, D Jamiolkowski, J McDivitt, J Fischer, J Zhou, Charles C. Han
The isothermal crystallization behavior of absorbable dyed and undyed PGA-co-PLA copolymers was investigated by time-resolved simultaneous synchrotron small-angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) methods. The morphological

Early Stage Crystallization in Poly (Ethylene-Co-Hexene) by SAXS/WAXD, DSC, OM and AFM

August 1, 2001
Author(s)
G Z. Wang, Haonan Wang, K Shimizu, Charles C. Han, B S. Hsiao
Isothermal crystallization in the early stages of one short-chain branching polyethylene, PEH, is examined by time-resolved SAXS/WAXD, DSC, optical microscope and AFM. WAXD showed a rapid decrease of the inter-chain distance in the amorphous phase at the

Multiple Lateral Length Scales in Phase-Separating Thin Film Polymer Blends

May 1, 2001
Author(s)
Haonan Wang, R J. Composto, Erik K. Hobbie, Charles C. Han
The interplay of phase separation, preferential wetting, and capillary instability in thin film polymer blends is investigated using composition-profiling and surface-imaging techniques. The phase-separating films exhibit a unique morphology with two