Dissociation behavior of poly(fumaric acid) and poly(maleic acid). 3. Infrared and ultraviolet spectroscopy
| Autor: | Toshiaki Kitano, Seigou Kawaguchi, Koichi Ito |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Fumaric acid
Aqueous solution Polymers and Plastics Maleic acid Titration curve Hydrogen bond Organic Chemistry Dissociation (chemistry) Inorganic Chemistry chemistry.chemical_compound Ultraviolet visible spectroscopy chemistry Intramolecular force Polymer chemistry Materials Chemistry Organic chemistry |
| Zdroj: | Macromolecules. 25:1294-1299 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma00030a014 |
| Popis: | Aqueous solutions of poly(fumaric acid) (PFA) and poly(maleic acid) (PMA) at various degrees of neutralization were studied. It was found that about 50 % of the carboxyl groups of PFA can form intramolecular hydrogen bonding. The carboxyl groups of PMA can form intramolecular hydrogen bonding among the four equivalent carboxyl groups which resonate each other. The difference in titration curves between PFA and PMA is due to the different extent and type of the hydrogen bondings produced from their configurational difference, in addition to simple electrostatic interaction. |
| Databáze: | OpenAIRE |
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