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Complexation between poly(methacrylic) and poly(acrylic) acids and star-shaped poly(ethylene glycol) based on pyrogallol

✍ Scribed by V. Yu. Baranovsky; S. Shenkov; V. Doseva; G. Borisov

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
522 KB
Volume
34
Category
Article
ISSN
0887-624X

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✦ Synopsis

Complex formation between polymethacrylic (PMAA) and polyacrylic acids, and star-shaped poly(ethy1ene glycol) prepared by ethoxylation of pyrogallol (Pyr-PEG) has been studied viscometrically and by potentiometric titration in water solution. The competitive ability of Pyr-PEG and of the derivatives of the ethoxylation of phenol and hydroquinone in complex formation with PMAA has been compared by UV spectroscopy. Pyr-PEG turns out to be the weakest competitor because of its chemical structure.

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