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 explosive poly-condensation of ethylene oxide
β Scribed by Gupta, A. K.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1949
- Weight
- 564 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0368-4075
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β¦ Synopsis
described above. They were re-weighed and immersed in Clarke's solution for I minute (gassing ceased after 30 secs.) and weighed again.
A summary of the results is given in Table 11. Weight loss, oz./b.b. After After treat-No. of electrolytic ment in Clarke's Total Corr. obscrstripping solution loss loss vations Table Il Sheet I .. 6.77
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A two-stage stable system of isotactic polypropylene-poly(ethylene oxide) blend, in which poly(ethylene oxide) can be permanent either in molten or in crystallized states in the temperature range from 280 to 327 K, was described. The behavior of that blend was explained in terms of fractionated crys
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
Gold nanosheets having single crystalline structure were successfully synthesized using the bulk phase mixture of HAuCl 4 and poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymers through the irradiation of a glow lamp for 5 days. When the molar ratio of propylene oxide to