New Insight of Isothermal Melt Crystallization in Poly(aryl ether ether ketone) via Time-Resolved Simultaneous Small-Angle X-ray Scattering/Wide-Angle X-ray Diffraction Measurements

1995 ◽  
Vol 28 (20) ◽  
pp. 6931-6936 ◽  
Author(s):  
Benjamin S. Hsiao ◽  
Bryan B. Sauer ◽  
Ravi K. Verma ◽  
H. Gerhard Zachmann ◽  
Soenke Seifert ◽  
...  
Keyword(s):  
Small Angle ◽  
Wide Angle ◽  
Melt Crystallization ◽  
Aryl Ether ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Ether Ether Ketone ◽  
Ether Ketone

Time-resolved isothermal crystallization of absorbable PGA-co-PLA copolymer by synchrotron small-angle X-ray scattering and wide-angle X-ray diffraction

Polymer ◽  
2001 ◽  
Vol 42 (21) ◽  
pp. 8965-8973 ◽  
Author(s):  
Zhi-Gang Wang ◽  
Xuehui Wang ◽  
Benjamin S. Hsiao ◽  
Saša Andjelić ◽  
Dennis Jamiolkowski ◽  
...  
Keyword(s):  
Small Angle ◽  
Isothermal Crystallization ◽  
Wide Angle ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals Simultaneous small-angle X-ray scattering/wide-angle X-ray diffraction study of the microdomain structure of polyurethane elastomers during mechanical deformation

2011 ◽  
Vol 43 (8) ◽  
pp. 692-699 ◽  
Author(s):  
Ken Kojio ◽  
Keisuke Matsuo ◽  
Suguru Motokucho ◽  
Kohji Yoshinaga ◽  
Yoshiki Shimodaira ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Small Angle ◽  
Mechanical Deformation ◽  
Wide Angle ◽  
X Ray Diffraction ◽  
Polyurethane Elastomers ◽  
X Ray ◽  
X Ray Scattering ◽  
Microdomain Structure ◽  
Ray Scattering

Self-organized structures of hydrogen bonded poly(4-vinylphenol) - tertiary amino lipid mixtures

e-Polymers ◽  
2002 ◽  
Vol 2 (1) ◽  
Author(s):  
Isamu Akiba ◽  
Kazuo Sakurai
Keyword(s):  
Ir Spectroscopy ◽  
Small Angle ◽  
Wide Angle ◽  
X Ray Diffraction ◽  
X Ray ◽  
Lamellar Structures ◽  
Self Organized ◽  
X Ray Scattering ◽  
Lipid Mixtures ◽  
Tertiary Amino

AbstractMesomorphic structures of hydrogen bridged poly(4-vinylphenol) - N,N-dimethyl- n-octadecylamine (PVPh-NDOA) and PVPh - N,N-dioctadecylmethylamine (PVPh-DOMA) mixtures were investigated by means of wide angle X-ray diffraction, small angle X-ray scattering, and IR spectroscopy. Octadecyl chains of the PVPh-NDOA and PVPh-DOMA mixtures showed hexagonal αH and orthorhombic βO packing, respectively. In addition, PVPh-NDOA and PVPh-DOMA formed lamellar structures with periods of 3.5 and 2.5 nm, respectively.

In-house simultaneous collection of small-angle X-ray scattering, wide-angle X-ray diffraction and Raman scattering data from polymeric materials

2014 ◽  
Vol 47 (3) ◽  
pp. 922-930 ◽  
Author(s):  
Raita Hirose ◽  
Taiyo Yoshioka ◽  
Hiroko Yamamoto ◽  
Kummetha Raghunatha Reddy ◽  
Daisuke Tahara ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Small Angle ◽  
Polymeric Materials ◽  
Scattering Data ◽  
Present System ◽  
Wide Angle ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

An in-house X-ray scattering system, which can simultaneously measure small-angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) data, as well Raman scattering data, has been developed to study the phase transitions of polymeric materials. To date, these types of measurements have been limited to synchrotron radiation. The present system is an in-house SAXS system combined with a WAXD detector and a Raman spectrometer. A rotating-anode X-ray generator and multilayer optic are employed to provide a high-flux X-ray beam. Two two-dimensional hybrid pixel detectors are utilized for the rapid-scan time-resolved SAXS and WAXD measurements. The Raman unit consists of a compact probe with a near-infrared excitation laser operating at a wavelength of 1064 nm. This long-wavelength laser produces less fluorescence than conventional excitation lasers with wavelengths of 532 or 785 nm. The performance of this system was tested by investigating the thermally induced ferroelectric phase transition of vinylidene fluoride–trifluoroethylene (VDF-TrFE) copolymers. It has been demonstrated that the combination of SAXS, WAXD and Raman techniques gives useful information for revealing the relationship between the structural change in the crystal lattice and the morphological change in the lamellar stacking mode in polymer samples of complicated hierarchical structure.

Sign in / Sign up

Export Citation Format

Share Document