## Abstract 2,5‐Bis(alkylthio)terephthalic acids (and their acyl chlorides) were prepared by nucleophilic substitution of diethyl 2,5‐dibromoterephthalate with octane‐, dodecane‐ and hexadecanethiol. The poly(ester anhydrides) were obtained by thermal polycondensation of disubstituted terephthaloyl
Polyanhydrides—3. Thermotropic poly(ester-anhydride)s of 2,5-bis-alkoxyterephthalic acids and unsubstituted comonomers
✍ Scribed by Hans R. Kricheldorf; Dierk Lübbers
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 544 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0014-3057
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A~tract--Poly(ester-anhydride)s were prepared by cocondensation of terephthalic acid and 4-hydroxybenzoic acid with acetic anhydride under four different reaction conditions. Three cocondensations of terephthalic acid and 6-hydroxy-2-naphthoic acid were also performed. WAXS and DSC measurements demo
## Abstract Two series of thermotropic poly(ester‐anhydride)s, LC‐PEAs, were studied. The first series was prepared by polycondensation of naphthalene‐2,6‐dicarbonyl dichloride with silylated 4‐hydroxybenzoic acid, silylated and substituted 4‐hydroxybenzoic acids or silylated 6‐hydroxy‐2‐naphthoic