Numerous cholesteric copoly(ester-imide)s were prepared from tert.-butylhydroquinone and isosorbide, on the one hand, and from the acid chlorides of N-(4-carboxyphenyl)trimellitimide and 1, 6-bis(4-carboxyphenoxy)hexane on the other. Two polycondensation methods were applied and compared. The molar ratio of the diols was varied and also the molar ratio of hot dicarboxylic acid chlorides. The copoly(ester-imide)s formed Grandjean textures with a low content (5–10 mol%) of isosorbide and relatively high content of the flexible dicarboxylic acid. The glass transition temperatures (Tgs) varied in the range of 160–180 °C.
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References
1.
[1] Buning T J and Kreuzer F-H1995Trends Polym. Sci.3318-318
2.
[2] Bouligand Y1973J. Physique34603-603
3.
[3] de Jeu H W and Vertogen G1977Thermotropic Liquid Crystals (Berlin: Springer)
4.
[4] Kricheldorf H R, Domschke A and Schwarz G1991Macromolecules241011-1011
5.
[5] de Abacho J, de la Campa J, Kricheldorf H R and Schwarz G1992Eur. Polym. J. 28261-261
6.
[6] Kricheldorf H R, Schwarz G, Domschke A and Linzer V1993Macromolecules265161-5161
7.
[7] Kricheldorf H R and Probst N1995Macromol. Rapid Commun.16231-231
8.
[8] Probst N and Kricheldorf H R1995High Perform. Polym.7461-461
9.
[9] Kricheldorf H R and Probst N1995High Perform. Polym.7471-471
10.
[10] Kricheldorf H R and Krawinkel T1997High Perform. Polym.991-91
11.
[11] Vill V, Fischer F and Thiem J1988Z. Naturforsch.43a1119-1119
12.
[12] Braun D and Bergmann M1992J. Prakt. Chem.334298-298
13.
[13] Kurita K and Matsuda S1983Makromol. Chem.1841223-1223
14.
[14] Kricheldorf H R and Hüner R1992J. Polym. Sci, Part A, Polym. Chem.30337-337
15.
[15] Griffin A C and Haven S J1981J. Polym. Sci, Polym. Phys. Ed.19951-951
