## Abstract The paper describes the synthesis of thermotropic elastomers from trimellitimide‐terminated poly(oxy‐1,4‐butanediyl) [synonyms: poly(tetramethylene ether glycol), PTMG; poly(tetrahydrofuran), poly(THF)] and acetoxy group‐terminated rigid blocks. Copolyester imides are formed by transest
Thermotropic block copolymers: polyesters with flexible poly(tetramethylene glycol) units in the main chain
✍ Scribed by Kerstin Mitrach; Doris Pospiech; Liane Häußler; Dieter Voigt; Dieter Jehnichen; Manfred Rätzsch
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 516 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0032-3861
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Semiflexible thermotropic liquid crystalline (TLC) polyesters with a mesogenic unit of 4,4'-diphenoxy terephthalate and two flexible spacers of decamethylene and hexamethylene were synthesized changing the ratio of two aliphatic units in a main chain. Those random copolyesters had the following sche
## Abstract An attempt was made to prepare periodic polymers having promesogenic units of various lengths. Due to a certain distribution within these units, copolymers of this structure should rather be called pseudoperiodic. In order to understand better the behaviour of such systems, copolymeriza