A. Mochizuki, Y. Miwa, C. Yahata, Haruyo Saito, Yoshiki Oda
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Properties of hydrated poly(2-methoxyethyl acrylate) observed by 13C-nuclear magnetic resonance spectroscopy
Abstract It is well-known that poly(2-methoxyethyl acrylate) (PMEA) exhibits excellent blood compatibility and various investigations have examined the underlying mechanism of this compatibility in terms of the water structure in PMEA and/or inherent PMEA properties. However, information regarding the dynamic properties of the PMEA remains limited. This study was performed to clarify the effect of water molecules on the structure and dynamic properties of hydrated PMEA by comparing dry PMEA using temperature-variable 13C nuclear magnetic resonance spectroscopy (13C-NMR) with a solution probe at 15 –45 °C. Hydration changed the chemical shift values of the four carbons in the PMEA side chain (−COOCH2 CH2OCH3). Investigations of spin-lattice relaxation times and resonance peak widths showed that hydration increased PMEA mobility and the side chain mobility markedly changed at approximately 30 °C, especially in dry PMEA.
期刊介绍：
The scope of the journal is to publish original contributions and reviews on studies, methodologies, instrumentation, and applications involving the analysis and characterization of polymers and polymeric-based materials, including synthetic polymers, blends, composites, fibers, coatings, supramolecular structures, polysaccharides, and biopolymers. The Journal will accept papers and review articles on the following topics and research areas involving fundamental and applied studies of polymer analysis and characterization:
Characterization and analysis of new and existing polymers and polymeric-based materials.
Design and evaluation of analytical instrumentation and physical testing equipment.
Determination of molecular weight, size, conformation, branching, cross-linking, chemical structure, and sequence distribution.
Using separation, spectroscopic, and scattering techniques.
Surface characterization of polymeric materials.
Measurement of solution and bulk properties and behavior of polymers.
Studies involving structure-property-processing relationships, and polymer aging.
Analysis of oligomeric materials.
Analysis of polymer additives and decomposition products.
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