Structure - LC properties relationship in siloxane-azomethine compounds

Polymer - Plastics Technology and Engineering

Volumn 44, Issue 6, 2005, Pages 1049-1058

  Racleş, Carmen ^a   Cazacu, Maria ^a   Vasiliu, Monica ^a   Cozan, Vasile ^a  

^a PETRU PONI INSTITUTE OF MACROMOLECULAR CHEMISTRY   (Romania)

Author keywords

Azomethine; Liquid crystals; Mesogenic Index; Molecular polarizability; Siloxane

Indexed keywords

DIFFERENTIAL SCANNING CALORIMETRY; DIMERS; LIGHT POLARIZATION; LIQUID CRYSTALS; OPTICAL MICROSCOPY;

AXIAL RATIO; MESOGENIC INDEX; POLARIZED LIGHT OPTICAL MICROSCOPY (PLM);

POLYMERS;

POLYMER SCIENCE;

EID: 23244460364     PISSN: 03602559     EISSN: 15256111     Source Type: Journal    
DOI: 10.1081/PTE-200065170     Document Type: Article

References (19)

1. Barbera, J.; Oriol, L.; Serrano, J.L. Hydroxy-functionalized liquid-crystalline polyazomethines 1. Synthesis, characterization and structure-mesogenic behaviour relationship. Liquid Crystals 1992, 12 (1), 37-47.
2. Kricheldorf, H.R. Silicon in Polymer Synthesis, Springer Verlag: Berlin Heidelberg, 1996.
3. Kimura, K.; Zhuang, J.H.; Shirabe, K.; Yamashita, Y. Preparation of needle-like poly(azomethine) crystals by means of reaction-induced crystallization of oligomers. Polymer 2003, 44, 4761-4764.
4. Matsumoto, T.; Matsuoka, T.; Suzuki, Y.; Miyazawa, K.; Kurosaki, T.; Mizukami, T. Synthesis of fully conjugated aromatic polyazomethine from AB-type monomer using soluble precursor method. Macromol. Symp. 2003, 199, 83-96.
5. Morgan, P.W.; Kwolek, S.L.; Pletcher, T.C. Aromatic azomethine polymers and fibers. Macromolecules 1987, 20 (4), 729-739.
6. Wojtkowski, P.W. Aromatic-aliphatic azomethine ether polymers and fibers. Macromolecules 1987, 20 (4), 740-748.
7. Lee, K.S.; Samoc, M. Third-order nonlinear optical properties of wholly aromatic polyazomethines. Polym. Commun. 1991, 32, 361-362.
8. Vieth, C.A.; Samulski, E.T.; Murthy, N.S. Multilayered crystalline structures and liquid crystalline phases in a mesogen with siloxane tails. Liq. Cryst. 1995, 19, 557-563.
9. Madec, P.J.; Marechal, E. Main-chain thermotropic polysiloxane-b-polyazomethine copolymers. Polym. Prepr. 1993, 34, 815.
10. Janini, G.M.; Laub, R.J.; Shaw, T.J. Synthesis and properties of high temperature mesomorphic polysiloxane (MEPSIL) solvents. Amide, ester and Schiff's base linked systems. Makromol. Chem. Rapid Commun. 1985, 6, 57-63.
11. Madec, P.J.; Peres, R.; Marechal, E. Synthesis and characterisation of main-chain thermotropic aromatic polyazomethines with siloxane spacers. Makromol. Chem. Macromol. Symp. 1991, 47, 357-361.
12. Racles, C.; Cozan, V. Siloxane-Containing thermotropic liquid crystals based on new azomethine dimesogens. High Performance Polymers 2002, 14, 169-181.
13. Racles, C.; Cozan, V.; Cazacu, M.; Foldes, E.; Sajo, I. Poly(azomethine-ester-siloxane)s. Synthesis and thermal behaviour. High Performance Polymers 2002, 14, 397-413.
14. Vasiliu, M.; Cazacu, M.; Marcu, M.; Ioan, S. Modified polysiloxanes I. New siloxane-azomethine alternating copolymers. Polym. Plast. Technol. Eng. 2005, 44, 993-1002.
15. Demus, D.; Richter, L. Textures of Liquid Crystals, 2nd Ed., VEB Deutscher Verlag fur Grundstoffindustrie: Leipzig, 1980.
16. Noh, H.G.; Shim, H. K.; Chang, J.H.; Jin, J.I. Synthesis and characterization of novel siloxane liquid crystalline polymers containing two symmetric mesogens. Macromolecules 1997, 30 (5), 1521-1523.
17. Dolden, J.G.; Alder, P.T. The Mesogenic Index: An empirical method for predicting polymeric liquid crystallinity. High Performance Polymers 1998, 10, 249-272.
18. Bicerano, J. Prediction of the properties of polymers from their structures. J. Macromol. Sci.-Rev. Macromol. Chem. Phys. 1996, C36 (1), 161-196.
19. Hyper Chem (TM), Hypercube, Inc., 1115 NW 4th Street, Gainesville, Florida 32601, USA.