Crystallization and Melting Behavior of Liquid Crystalline Copolyesters Based on Modified Poly- [(p-hydroxybenzoic acid)-co-(ethylene terephthalate)]
β Scribed by Yongjian Liu
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 184 KB
- Volume
- 202
- Category
- Article
- ISSN
- 1022-1352
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A series of copolyesters were prepared by the incorporation of p-hydroxybenzoic acid (HBA), hydroquinone (HQ), and terephthalic acid (TA) into poly(ethylene terephthalate) (PET). On the basis of viscosity measurements, high molar mass copolyesters were obtained in the syntheses, and 1 H-NMR analyses
## Abstract Poly(ethylene terephthalate)/__p__βhydroxybenzoate (PET/PHB) copolymer materials have relatively low melt viscosity because of the 60 mol % PHB material having a value that is lower by approximately two orders of magnitude than the value for PET homopolymer. The structure development du
Eight new p-hydroxybenzoic acid (PHB) and poly(ethylene terephthalate) (PET) copolymers containing vanillic acid (VA), p-aminobenzoic acid, m-hydroxybenzoic acid, hydroquinone/terephthalic acid (TPA), bisphenol A/TPA, 1,5-naphthalenediol/TPA, 2,7-naphthalenediol/TPA, and 1,4-dihydroxyanthraquinone/T