Chiral Polymers-The Synthesis of Optically Active Vinyl and Vinylidene Polymers with Main Chain Chirality

2013 ◽  
Author(s):  
Günter Wulff
Keyword(s):  
Main Chain ◽  
Optically Active ◽  
Chiral Polymers

Conjugated Polymers with Main Chain Chirality. 3. Synthesis of Optically Active Poly(aryleneethynylene)s

1996 ◽  
Vol 29 (15) ◽  
pp. 5083-5090 ◽  
Author(s):  
Liang Ma ◽  
Qiao-Sheng Hu ◽  
Kwon Yon Musick ◽  
Dilrukshi Vitharana ◽  
Chi Wu ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Main Chain ◽  
Optically Active

Methacrylic polymers bearing side-chain permanent dipole azobenzene chromophores spaced from the main chain by chiral moieties, 3 a Synthesis and chiroptical properties of the homopolymer of (R)-3-methacryloyloxy-1-(4’-nitro-4-azobenzene)- pyrrolidine and of copolymers with the enantiomeric monomer (S)-3-methacryloyloxy-1-(4’-nitro-4-azobenzene)- pyrrolidine

e-Polymers ◽  
2003 ◽  
Vol 3 (1) ◽  
Author(s):  
Luigi Angiolini ◽  
Loris Giorgini ◽  
Elisabetta Salatelli
Keyword(s):  
Radical Polymerization ◽  
Optical Activity ◽  
Main Chain ◽  
Optically Active ◽  
Side Chain ◽  
Chiroptical Properties

Abstract The optically active photochromic homopolymer deriving from radical polymerization of the monomer (R)-3-methacryloyloxy-1-(4’-nitro-4-azobenzene)- pyrrolidine, containing a chiral group of one prevailing configuration interposed between the methacrylic moiety and the photochromic azoaromatic chromophore, has been synthesized and characterized. Copolymers with the enantiomeric monomer (S)-3-methacryloyloxy-1-(4’-nitro-4-azobenzene)pyrrolidine have also been prepared in order to evaluate the effect on the overall optical activity of side chain chiral groups of opposite configuration in various ratios. The spectroscopic and chiroptical properties in solution of the polymeric derivatives have been assessed.

Synthesis of A 1,1′-Binaphthyl Based Main Chain Chiral Conjugated Polymer

1995 ◽  
Vol 413 ◽  
Author(s):  
Qiao-Sheng Hu ◽  
Dilrukshi Vitharana ◽  
Lin Pu
Keyword(s):  
Absorption Spectrum ◽  
Boronic Acid ◽  
Conjugated Polymer ◽  
Main Chain ◽  
Repeat Unit ◽  
Suzuki Coupling ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Palladium Catalyzed

ABSTRACTThe synthesis and characterization of a 1,1′-binaphthyl based main chain chiral conjugated polymer, R-9, is described. The polymer is prepared from the palladium-catalyzed Suzuki coupling of an optically active binaphthyl molecule, (R)-2,2′-dihexyloxy-1,1′-binaphthyl-6,6′- diboronic acid, R-4 with 1,4-bis(p-bromostyryl)benzene (E:Z = 1:1.2), 8. The Suzuki coupling of 8 with 6-neopentyloxynaphthyl-2-boronic acid, 1 1, leads to the formation of a conjugated molecule 10. The structure of this molecule represents the repeat unit of R-9. The electronic absorption spectrum of 10 demonstrates that the degree of conjugation in the chiral conjugated polymer is almost the same as that of its repeat unit.

Correction to Main-Chain Optically Active Riboflavin Polymer for Asymmetric Catalysis and Its Vapochromic Behavior

2012 ◽  
Vol 134 (43) ◽  
pp. 18150-18150 ◽  
Author(s):  
Hiroki Iida ◽  
Soichiro Iwahana ◽  
Tomohisa Mizoguchi ◽  
Eiji Yashima
Keyword(s):  
Asymmetric Catalysis ◽  
Main Chain ◽  
Optically Active ◽  
Vapochromic Behavior

Methylenation of an Optically Active γ-Polyketone:  Synthesis of a New Class of Hydrocarbon Polymers with Main-Chain Chirality

2001 ◽  
Vol 34 (18) ◽  
pp. 6167-6168 ◽  
Author(s):  
Kyoko Nozaki ◽  
Naoyuki Kosaka ◽  
Vera M. Graubner ◽  
Tamejiro Hiyama
Keyword(s):  
Main Chain ◽  
Optically Active ◽  
New Class ◽  
Hydrocarbon Polymers
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