Syntheses and Physical Properties of Novel Optically Active Poly(ester−carbonate)s by Copolymerization of Substituted Trimethylene Carbonate with ε-Caprolactone and Their Biodegradation Behavior

1999 ◽  
Vol 32 (19) ◽  
pp. 6047-6057 ◽  
Author(s):  
Hajime Yasuda ◽  
Mohad-Serah Aludin ◽  
Naoyuki Kitamura ◽  
Mari Tanabe ◽  
Hiroyuki Sirahama
Keyword(s):  
Physical Properties ◽  
Optically Active ◽  
Trimethylene Carbonate

XVIII.—The Physical Properties of Mixed Solutions of Independent Optically - Active Substances

1907 ◽  
Vol 27 ◽  
pp. 172-180
Author(s):  
Clerk Ranken ◽  
W. W. Taylor
Keyword(s):  
Physical Properties ◽  
Active Substance ◽  
Optically Active ◽  
Present Communication ◽  
Points Of Interest ◽  
Systematic Examination ◽  
Mixed Solutions ◽  
Two Systems ◽  
Active Substances ◽  
Optically Active Substances

The two systems containing one of a pair of optically-active stereoisomers and an independent optically-active substance present many points of interest and importance, but have not hitherto been investigated with any degree of completeness. What is known about them may fairly be said to consist of a series of isolated facts. The present communication also contributes a few more isolated observations, and is, in reality, a preliminary to a more systematic examination of the whole subject.

The Properties of Silica and Hybrid Nanostructures

2010 ◽  
Vol 1256 ◽  
Author(s):  
Avi Shalav ◽  
Robert Elliman ◽  
Taehyun Kim
Keyword(s):  
Physical Properties ◽  
Growth Mechanism ◽  
Optically Active ◽  
Hybrid Nanostructures ◽  
Si Substrate ◽  
Active Oxidation ◽  
Vapor Liquid Solid ◽  
Coating Methods ◽  
Secondary Materials ◽  
Vapor Liquid Solid Growth

AbstractSiOx nanowires can be grown via the vapor-liquid-solid growth mechanism using SiO vapor produced during the active oxidation of a Si substrate. The as-grown SiOx nanowire have a range of useful physical properties but can also be used as large surface area substrates for the growth of secondary materials. In this study we report the use of optically active impurities to grow and dope secondary nanowire structures, and the use of simple coating methods to enhance and extend the functionality of these unique nanowire substrates.

Physical Properties and Erosion Behavior of Poly(trimethylene carbonate-co-ε-caprolactone) Networks

2013 ◽  
Vol 13 (5) ◽  
pp. 573-583 ◽  
Author(s):  
Erhan Bat ◽  
Theo G. van Kooten ◽  
Martin C. Harmsen ◽  
Josée A. Plantinga ◽  
Marja J. A. van Luyn ◽  
...  
Keyword(s):  
Physical Properties ◽  
Trimethylene Carbonate ◽  
Erosion Behavior

scholarly journals Supramolecular Structure, Physical Properties, and Langmuir-Blodgett Film Formation of an Optically Active Liquid-Crystalline Phthalocyanine

1995 ◽  
Vol 1 (3) ◽  
pp. 171-182 ◽  
Author(s):  
Cornelus F. van Nostrum ◽  
Anton W. Bosman ◽  
Gerwin H. Gelinck ◽  
Pieter G. Schouten ◽  
John M. Warman ◽  
...  
Keyword(s):  
Physical Properties ◽  
Supramolecular Structure ◽  
Liquid Crystalline ◽  
Film Formation ◽  
Optically Active ◽  
Blodgett Film ◽  
Langmuir Blodgett ◽  
Active Liquid ◽  
Langmuir Blodgett Film

Preparation and properties of optically active aromatic polyamides derived from newly prepared chiral phenylindanediamine

1995 ◽  
Vol 7 (2) ◽  
pp. 149-156
Author(s):  
Atsushi Morikawa ◽  
Masa-Aki Kakimoto ◽  
Yoshio Imai
Keyword(s):  
Glass Transition ◽  
Physical Properties ◽  
Dicarboxylic Acid ◽  
Dicarboxylic Acids ◽  
Optically Active ◽  
The Self ◽  
X Ray Diffraction ◽  
X Ray ◽  
Aromatic Polyamides ◽  
Circular Dichroïsm

Chiral phenylindanediamnine (+)-2 was synthesized starting from chiral phenyl-indanedicarboxylic acid by a Schmidt rearrangement. Ordered amine-acid AB-type monomers, 8 and 9, were also prepared by a controlled reaction of (+)-2 with diacid chlorides. Disordered and ordered polyamides were synthesized by the reaction of (+)-2 with dicarboxylic acids, and the self-condensation of 8 and 9, respectively. Both the ordered and disordered polyamides were soluble in various solvents. The polyamides composed of the same dicarboxylic acid prepared by the different routes showed the same circular dichroism spectra. X-ray diffraction of the polyamide films indicated that all of the polyamides were amorphous. The glass transition and decomposition temperatures ranged from 170 to 340°C and from 320 to 400 °C, respectively. Additionally, polyamides containing the same diacids displayed nearly equivalent physical properties.

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