Szczegóły publikacji
Opis bibliograficzny
FT-IR and FT-Raman studies of cross-linking processes with $Ca^{2+}$ ions, glutaraldehyde and microwave radiation for polymer composition of poly(acrylic acid)/sodium salt of carboxymethyl starch, Pt. 1 / Beata GRABOWSKA, Maciej SITARZ, Ewa OLEJNIK, Karolina KACZMARSKA // Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy ; ISSN 1386-1425. — 2015 — vol. 135, s. 529–535. — Bibliogr. s. 535, Abstr.
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Dane bibliometryczne
| ID BaDAP | 83304 |
|---|---|
| Data dodania do BaDAP | 2014-09-09 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.saa.2014.07.031 |
| Rok publikacji | 2015 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Spectrochimica Acta, Part A, Molecular and Biomolecular Spectroscopy |
Abstract
FT-IR and FT-Raman spectroscopic methods allowed to identify the cross-linking process of the aqueous composition of poly(acrylic acid)/sodium salt of carboxymethyl starch (PAA/CMS-Na) applied as a binder for moulding sands. The cross-linking was performed by chemical methods by introducing cross-linking substances with Ca2+ ions or glutaraldehyde and by physical way, applying the microwave radiation. It was found that Ca 2+ ions cause formation of cross-linking ionic bonds within carboxyl and carboxylate groups. Glutaraldehyde generates formation of cross-linking bonds with hemiacetal and acetal structures. Whereas in the microwave radiation field, due to dehydration, lattices are formed by anhydride bonds. © 2014 Elsevier B.V. All rights reserved.
