✦ LIBER ✦

Solubility in water of triblock (PEP) copolymers of ethylene and propylene oxides

✍ Scribed by Lubomír Šimek; Stanislav Petřík; František Hadobaš; Miloslav Bohdanecký

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 231 KB
Volume: 26
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(90)90257-5

No coin nor oath required. For personal study only.

✦ Synopsis

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-terminated copolymers are more involved and give evidence of an important effect of end groups.

📜 SIMILAR VOLUMES

Melt viscosity of oligomeric triblock co

Melt viscosity of oligomeric triblock copolymers (type PEP) of ethylene and propylene oxides

✍ L. S̆imek; S. Petr̆ik; M. Bohdanecký 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 553 KB

Melting points of symmetric oligomeric t

Melting points of symmetric oligomeric triblock copolymers (type pep) of ethylene and propylene oxides

✍ Lubomír Šimek; Stanislav Petřík; František Hadobaš; Miloslav Bohdanecký 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 284 KB

Volumetric properties of aqueous solutio

Volumetric properties of aqueous solutions of triblock (PEP) copolymers of ethylene oxide and propylene oxide

✍ Lubomír S̆imek; Miloslav BohdaneckÝ 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 587 KB

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

Influence of poly(ethylene oxide)-poly(p

Influence of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymers on stereoselective catalysis in water

✍ Kerstin Drexler; Roland Meisel; Ingrid Grassert; Eckhard Paetzold; Hans Fuhrmann 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 89 KB 👁 1 views

Suzuki reaction under phase transfer conditions: 15 mmol phenylboronic acid, 13 mmol p-iodoanisole, 0.01 mmol PdCl 2 [Ph 2 P(CH 2 ) 4 SO 3 K] 2 , 45 mmol Na 2 CO 3 in toluene/ethanol/water = 15 : 15 : 15 ml with 400 mg of different block copolymers; at 78 8C

A comparative study of sorption of water

A comparative study of sorption of water vapor by oligomeric triblock copolymers of ethylene and propylene oxides

✍ S. Petr̂ík; M. Bohdanecký; F. Hadobaŝ; L. Ŝimek 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 480 KB 👁 2 views

Solubilization of Gases by Poly(ethylene

Solubilization of Gases by Poly(ethylene oxide)–Poly(propylene oxide) Triblock Copolymers

✍ A.D. King Jr. 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 66 KB

Measurements have been made to determine the solubilities of three hydrocarbon gases, methane, ethane, and propane, in aqueous solutions of four different water-soluble triblock copolymers of the Pluronic class: Pluronic P103, P104, P105, and F108. The solubilities of each gas, measured at 25 • C, f