Melting points of symmetric oligomeric triblock copolymers (type pep) of ethylene and propylene oxides
✍ Scribed by Lubomír Šimek; Stanislav Petřík; František Hadobaš; Miloslav Bohdanecký
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 284 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0014-3057
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📜 SIMILAR VOLUMES
A~traet--Aqueous solutions of hydroxyl-terminated triblock copolymers of ethylene and propylene oxides display turbidity, both on heating and cooling. The lower critical solution temperatures increase with increase in the content of ethylene oxide units. Phase diagrams obtained with acetyl-terminate
Specific volumes of aqueous solutions of triblock (PEP) copolymers of ethylene oxide and propylene oxide at solute weight fractions 0.1 Q w2 Q 0.39 were measured in the temperature range from 5 to 65°C. Partial molar volumes r2 per chain repeat unit, their temperature quotient 8r2,1aT, and excess pa