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
Chemical Modification of Surface Active Poly(ethylene oxide)−Poly(propylene oxide) Triblock Copolymers
✍ Scribed by Li, Jenq-Thun; Carlsson, Jan; Lin, Jinn-Nan; Caldwell, Karin D.
- Book ID
- 111671656
- Publisher
- American Chemical Society
- Year
- 1996
- Tongue
- English
- Weight
- 175 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1043-1802
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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 number of results reported on the kinetics of exchange of triblock copolymers poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide), PEO-PPO-PEO, between micelles and the intermicellar aqueous solution are reviewed and analyzed to extract the rate constants k(+) for the entry of a copoly