Comparative study of the structure and properties of ionomeric polyurethane semicarbazides

1988 ◽  
Vol 30 (11) ◽  
pp. 2391-2397 ◽  
Author(s):  
V.A. Vilenskii ◽  
Yu.Yu. Kercha ◽  
V.I. Shtompel' ◽  
S.A. Sukhorukova ◽  
A.P. Grekov ◽  
...  
Keyword(s):  
Comparative Study ◽  
Structure And Properties

Comparative Study on the Structure and Properties of Japanese and Self-Made Precursors

2011 ◽  
Vol 317-319 ◽  
pp. 292-296
Author(s):  
Bao Hua Ji
Keyword(s):  
Comparative Study ◽  
Crystal Size ◽  
Cyano Group ◽  
Structure And Properties ◽  
X Ray Diffraction ◽  
Compact Structure ◽  
Cross Sectional ◽  
Xrd Pattern ◽  
X Ray ◽  
Infrared Spectrometer

In order to release the important information on the structural constitution of Japanese precursor, comparative study on structure and properties of Japanese and self-made precursors were carried out by X-ray Diffraction (XRD), infrared spectrometer (FTIR), element content analysis and the breaking tenacity. It was found that Japanese precursor contains cyano group (–CN) and may contain styrene sulfonic acid amine, while not containing the carboxyl and ester carbonyl, that is, not containing MA. The XRD pattern of Japanese precursor around 10° appears a new crystalline diffraction peak, and the crystal size becomes lower. The cross-sectional shapes of Japanese precursor are circle, with uniform and compact structure, thus its mechanical properties is superior.

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