Synthesis and characterization of block copolymers of polyether sulfone with liquid crystalline polyesters
β Scribed by Hsu Chain-Shu; Chen Ling-Bar
- Book ID
- 113300245
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 656 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0254-0584
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Liquid crystalline (LC) block copolymers comprising polystyrene and LC polyester blocks were obtained by a three-step procedure. In a first step, hydroxyl-terminated oligoesters were obtained by polycondensation reaction of methylhydroquinone and 4,4'-dicarboxy-l,10dibenzoyloxydecane in pyridine sol
## Abstract The synthesis of telechellcs of poly(etherβetherβsulfones) (PEES) is controlled by highβresolution gelβpermeation chromatography to optimize for low content of side products. Under optimum conditions the bifunctional polymerβhomologous series is formed to 99,9%. These telechrcs were use