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Introduction of phosphorus into the polyethyleneterephthalate molecule via disodium 1,2-dicarbomethoxyethylphosphonate—I. A study on the influence of the modifier-disodium 1,2-dicarbomethoxyethylphosphonate-on the properties of the pre-condensate

✍ Scribed by K. Troev; At. Grozeva; G. Borisov

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
231 KB
Volume
17
Category
Article
ISSN
0014-3057

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✦ Synopsis

The effect of the concentration of disodium 1,2-dicarbomethoxyethylphosphonate as modifier in the trans-esterification stage of polyethyleneterephthalate preparation has been studied. It has been found that trans-esterification proceeds normally at modifier concentrations of up to 9°~ by weight, in respect of the combined weights of dimethylterephthalate and ethylene glycol, thus affording a precondensate with good characteristics.

📜 SIMILAR VOLUMES

Introduction of phosphorus into the poly
Introduction of phosphorus into the polyethyleneterephthalate molecule—IV. A study on the influence of the modifier on the properties of the pre-condensation mixture—I
✍ K. Troev; At. Grozeva; G. Borisov 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 279 KB

There is an investigation of the influences of the type and concentration of modifier (bis(2hydroxyethyl)phosphite or the sodium salt of diethylphosphite) on the transesterification processes during polyethyleneterephthalate formation, as well as on the properties of the pre-condensation mixture. Th