Structural Transformation of Apocytochrome c Induced by Alternating Copolymers of Maleic Acid and Alkene
β Scribed by Liang, Li; Yao, Ping; Jiang, Ming
- Book ID
- 127337642
- Publisher
- American Chemical Society
- Year
- 2005
- Tongue
- English
- Weight
- 110 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1525-7797
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## Abstract **Summary:** A first route to the isomerisation of __erythro__β and __threo__β2,3βdisubstituted succinyl units in alternating alkeneβmaleic acid copolymers is presented. The isomerisation reactions of the disodium salt of etheneβmaleic acid copolymer were carried out in aqueous solution
The copolymerization of the c/s-and trans-piperylene isomers with maleic anhydride in the presence of a peroxide catalyst yields identical equimolar, alternating copolymers which, according to ~C-NMR analyses of the copolymers and the cyclic Diels-Alder adduct from trans-piperylene and maleic anhydr
The pK, values of the succinic acid moieties of hydrolyzed alternating ethene-and isobutenemaleic anhydride copolymers were determined in D,O. The pD-dependence on the 13C chemical shift of selected signals was analyzed for these copolymers. Four different pK,s were determined for the copolymer with