## Abstract Copolyesters of terephthalic acid, __p__‐hydroxybenzoic acid and ethylene glycol were prepared by high‐temperature melt polycondensation, starting from different hydroxybenzoic acid derivatives. Methyl __p__‐hydroxybenzoate monomers having the hydroxyl either free, etherified with ethyl
Simultaneous esterification of terephthalic acid and na-salt of sulfoisophthalic acid with ethylene glycol during the synthesis of copolyesters
✍ Scribed by T. L. Baranova; L. P. Repina; É. M. Aizenshtein
- Publisher
- Springer US
- Year
- 1979
- Tongue
- English
- Weight
- 116 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0015-0541
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📜 SIMILAR VOLUMES
The synthesis and analysis of copolyesters based on 1,4: 3,6-dianhydrosorbitol (DAS), ethylene glycol, and terephthalic acid is described. It is shown that these copolyesters present materials stable up to elevated temperatures. The glass transition temperature, Tg, is shown to rise linearly with in
## SYNOPSIS Clear time (tcl), the time required for the turbid mixture of terephthalic acid (TPA) and ethylene glycol (EG) to be clear, was measured to examine the effect of poly(ethy1ene terephthalate) (PET) prepolymer (DP of 1-5) on the kinetics of dissolution and/or esterification of TPA with E