Racemic Tartrate/Malate Anions Combine with Racemic Complex Cations to Form Optically Active Ionic Crystals

2021 ◽  
Author(s):  
Masashi Uno ◽  
Tatsuhiro Kojima ◽  
Naoto Kuwamura ◽  
Nobuto Yoshinari ◽  
Takumi Konno
Keyword(s):  
Optically Active ◽  
Ionic Crystals

Coulomb interactions and optically-active vibrations of Ionic crystals—I

1976 ◽  
Vol 37 (7) ◽  
pp. 693-698 ◽  
Author(s):  
Akio Yamamoto ◽  
Tamaki Utida ◽  
Hiromu Murata ◽  
Yuji Shiro
Keyword(s):  
Optically Active ◽  
Ionic Crystals ◽  
Coulomb Interactions

Structure-property relationships of PE/PP sandwiched films

1987 ◽  
Vol 45 ◽  
pp. 454-455
Author(s):  
J. Petermann ◽  
G. Broza ◽  
U. Rieck ◽  
A. Jaballah ◽  
A. Kawaguchi
Keyword(s):  
Mechanical Tests ◽  
Polymer Materials ◽  
Ionic Crystals ◽  
Structure Property ◽  
Polymer Systems ◽  
Structure Property Relationships ◽  
Oriented Films ◽  
Materials Used ◽  
Polymer Laminates ◽  
Heated Glass

Oriented overgrowth of polymer materials onto ionic crystals is well known and recently it was demonstrated that this epitaxial crystallisation can also occur in polymer/polymer systems, under certain conditions. The morphologies and the resulting physical properties of such systems will be presented, especially the influence of epitaxial interfaces on the adhesion of polymer laminates and the mechanical properties of epitaxially crystallized sandwiched layers.Materials used were polyethylene, PE, Lupolen 6021 DX (HDPE) and 1810 D (LDPE) from BASF AG; polypropylene, PP, (PPN) provided by Höchst AG and polybutene-1, PB-1, Vestolen BT from Chemische Werke Hüls. Thin oriented films were prepared according to the method of Petermann and Gohil, by winding up two different polymer films from two separately heated glass-plates simultaneously with the help of a motor driven cylinder. One double layer was used for TEM investigations, while about 1000 sandwiched layers were taken for mechanical tests.

INVESTIGATION OF THE VOLATILISATION OF RECOIL PRODUCTS FROM IONIC CRYSTALS

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-543-C7-548
Author(s):  
B. STOJANIK ◽  
R. LAUER ◽  
B. NEIDHART ◽  
K. BÄCHMANN
Keyword(s):  
Ionic Crystals

PLENARY SESSION.Dislocations in ionic crystals

1980 ◽  
Vol 41 (C6) ◽  
pp. C6-127-C6-133 ◽  
Author(s):  
J. Castaing
Keyword(s):  
Ionic Crystals

Optical analysis of ink and other contaminants in process waters

TAPPI Journal ◽  
2012 ◽  
Vol 11 (8) ◽  
pp. 51-58
Author(s):  
ANTTI HAAPALA ◽  
MIKA KÖRKKÖ ◽  
ELISA KOIVURANTA ◽  
JOUKO NIINIMÄKI
Keyword(s):  
Optically Active ◽  
Process Water ◽  
Paper Machine ◽  
Optical Analysis ◽  
Direct Process ◽  
Active Components ◽  
Water Contaminants ◽  
Dependent Measurement ◽  
Measurement Methodology

Analysis methods developed specifically to determine the presence of ink and other optically active components in paper machine white waters or other process effluents are not available. It is generally more interest¬ing to quantify the effect of circulation water contaminants on end products. This study compares optical techniques to quantify the dirt in process water by two methods for test media preparation and measurement: direct process water filtration on a membrane foil and low-grammage sheet formation. The results show that ink content values obtained from various analyses cannot be directly compared because of fundamental issues involving test media preparation and the varied methodologies used to formulate the results, which may be based on different sets of assumptions. The use of brightness, luminosity, and reflectance and the role of scattering measurements as a part of ink content analysis are discussed, along with fine materials retention and measurement media selection. The study concludes with practical tips for case-dependent measurement methodology selection.

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