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Fractionation of a Model Random Copolymer in Various Solvent Systems

✍ Scribed by Stejskal, Jaroslav; Kratochvíl, Pavel


Book ID
127134102
Publisher
American Chemical Society
Year
1978
Tongue
English
Weight
895 KB
Volume
11
Category
Article
ISSN
0024-9297

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Fractionation of a diblock copolymer in
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Phase behavior of a hydrogenated styrene / isoprene diblock copolymer in a dimethylformamide/methylcyclohexane demixing-solvent pair has been studied. At a fixed copolymer concentration (1% w/v), the scheme of phase behavior (temperature vs. mixed-solvent composition) of the system has been found to

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It has been shown that, under specific conditions, a demixing-solvent fractionation according to chemical composition can be applied to statistical copolymers. Formally, identical expressions have been derived for the distribution of a copolymer between coexisting phases in precipitation (sol-gel) a