New siloxane-containing polyesters with arylidene mesogenic moieties were prepared by copolycondensation reactions between bis(hydroxybuthyl)siloxanes, 2,6-bis(4-hydroxybenzylidene)cyclohexanone, and diacid chlorides such as sebacoyl and terephthaloyl. The polymer structure was confirmed by IR and 1H-NMR spectroscopy. They were characterized by gel permeation chromatography and ultraviolet analyses. The thermotropic liquid crystalline behavior was investigated by differential scanning calorimetry and polarized optical microscopy.
[1] Yilgor I and McGrath J E1988Adv. Polym. Sci.861
2.
[2] Kricheldorf H R1996Silicon in Polymer Synthesis ( Berlin: Springer-Verlag )
3.
[3] Raigorodskii I M , Rabkin V S and Kireev V V1995Vysokomol. Soed.A37445
4.
[4] Kendrick T C , Parbhoo B and White J W1989The Chemistry of Organic Silicon Compounds, eds S Patai and Z Rappoport ( New York: Wiley )
5.
[5] Latifa A , Boutevin B and Youssef B1994Progress in Organic Coatings23201
6.
[6] Kunzler J F and Orark R1997J. Appl. Polym. Sci.651081
7.
[7] Abd-Alla M A and Aly K A1991J. Macromol. Sci. Chem.A28251
8.
[8] Abd-Alla M A , Aly K A and Geies A A1991J. Macromol. Sci. Chem.A28269
9.
[9] El-Shahawy A S and Abd-Alla M A1991Macromolecules245528
10.
[10] Aly K A and Hammam AS2000Eur. Polym. J.361933
11.
[11] Aly K A2000J. Macromol. Sci.-Pure Appl. Chem.A3793
12.
[12] Kishore G and Kishore K1993Macromolecules262995
13.
[13] Donald A M and Windle A H1992Liquid Crystalline Polymers ( Cambridge: Cambridge University Press )
14.
[14] Jo B-W , Jin J-I and Lenz R W1982Eur. Polym. J.18233
15.
[15] Demus D , Goodby J , Gray G W , Spiess H-W and Vill V1998Handbook of Liquid Crystals, High Molecular Weight Liquid Crystals, vol. 3 ( New York: Wiley-VCH )
16.
[16] Finkelmann H , Naegele D and Ringsdorf H1979Makromol. Chem.180803
17.
[17] Aguilera C , Bartulin J , Hisgen B and Ringsdorf H1983Makromol. Chem.184253
18.
[18] Ozcayir Y , Lai X and Blumstein A1989Polym. Prepr.30495
19.
[19] Yonetake K , Nakagomi M , Ueda M and Masuko T1997Polym. J.29240
20.
[20] Braun F , Willner L , Hess M and Kosfeld R1989Makromol. Chem. Rapid. Commun.1051
21.
[21] Hempenius M A , Lammertink R G H and Vancso G J1997Macromolecules30266
22.
[22] Cazacu M , Marcu M , Vlad A , Caraiman D and Racles C1999Eur. Polym. J.351629
23.
[23] Noll W1968Chemistry and Technology of Silicones ( New York: Academic )
24.
[24] Abd-Alla M A , Kandeel M M , Aly K A and Hammam A S1990J. Macromol. Sci. Chem. A27523
25.
[25] Mandelkern L1964Crystallization of Polymers ( New York: McGraw-Hill )
26.
[26] Sirigu A1990Liquid Crystalline Polymers eds R A Weiss and C K Ober , ACS Symp. Series 435 ( Washington, DC: ACS ) p 266
