## Abstract Water swollen gels of (unbranched) dialkyl ethers (__n__ = 16, 17, 18, 20 and 21) of poly(ethylene oxide) (__Mฬ__~n~ = 10000, 20000 and 30000) have been investigated using NMR spectroscopy and differential scanning calorimetry (DSC). Aggregates of the alkyl segments were found to underg
Dynamics of poly(ethylene oxide) chains in water
โ Scribed by A. Eshuis; P.F. Mijnlieff
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 613 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0032-3861
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๐ SIMILAR VOLUMES
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
The cyclization dynamics of pyrene end-labelled poly(ethylene oxide) (mol. wt 1070, 1350 and 3700) have been studied in both poor and good solvents. The observed dependence of the cyclization rate constant on the molecular weight is not in accord with the "'bead-spring" model or with cyclizauon prob
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
The hydrophilic-lipophilic character of these polymers can The self-assembly behavior in water of a mixture of two poly be tailored by varying their molecular weight and relative (ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) block size. A number of PEO-PPO-PEO copolymers have copol