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Steric Communication of Chiral Information Observed in Dendronized Polyacetylenes
Online Contents | 2006| -
FULL PAPERS - Synthesis and NaOTf-Mediated Self-Assembly of Monodendritic Crown Ethers
Online Contents | 2002| -
Copolymerization of methacrylic acid with methyl methacrylate by SET-LRP
British Library Online Contents | 2010| -
Synthesis, Structural Analysis, and Visualization of Poly(2-ethynyl-9-substituted carbazole)s and Poly(3-ethynyl-9-substituted carbazole)s Containing Chiral and Achiral Minidendritic Substituents - The syntheses of two achiral minidendritic monomers, 2-ethynyl-9-(3,4,5-tris(dodecan-1-yloxy)benzyl)carbazole and 3-ethynyl-9-(3,4,5-tris(dodecan-1-yloxy)benzyl)carbazole, and their chiral analogues, 2-ethynyl-9-(3,4,5-tris((S)-2-methylbutan-1-yloxy)benzyl)carbazole and 3-ethynyl-9-(3,4,5-tris((S)-2-methylbutan-1-yloxylbenzyl) carbazole, are reported. Cis-transoidal polymers were prepared with Noyori's catalyst and characterized by a combination of 1H NMR, ultraviolet-visible, and circular dichroism spectroscopy, thermal optical polarized microscopy, and X-ray diffraction experiments. Individual chains were visualized by atomic force microscopy.
Online Contents | 2002| -
Dramatic Decrease of the Cis Content and Molecular Weight of cis-Transoidal Polyphenylacetylene at 23 (degree)C in Solutions Prepared in Air - cis-Transoidal polyphenylacetylene synthesized with Noyori's catalyst, both in solution and in bulk, in air or under an inert atmosphere, decreases in its cis content and molecular weight. Both in air and under an inert atmosphere, an intramolecular cyclization, followed by chain cleavage accompanied by the release of 1,3,5-triphenylbenzene, is responsible for this process.
Online Contents | 2002|
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