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Molecular dynamics studies of polyurethane nanocomposite hydrogels

Abstract

Polyurethane PEO-based hydrogels have a broad range of biomedical applicability. They are attractive for drug-controlled delivery systems, surgical implants and wound healing dressings. In this study, a PEO based polyurethane hydrogels containing Cloisite R 30B, an organically modified clay mineral, was synthesized. Structure of nanocomposite hydrogels was determined using XRD technique. Its molecular dynamics was studied by means of NMR spectroscopy, DMA and DSC analysis. The mechanical properties and thermal stability of the systems were improved by incorporation of clay and controlled by varying the clay content in polymeric matrix. Molecular dynamics of polymer chains depends on interaction of CloisiteR 30B nanoparticles with soft segments of polyurethanes. The characteristic nanosize effect is observed.

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
The European Physical Journal-Special Topics no. 222, edition 9, pages 2179 - 2186,
ISSN: 1951-6355
Language:
English
Publication year:
2013
Bibliographic description:
Strankowska J., Piszczyk Ł., Strankowski M., Danowska M., Szutkowski K., Jurga S., Kwela J.: Molecular dynamics studies of polyurethane nanocomposite hydrogels// The European Physical Journal-Special Topics. -Vol. 222, iss. 9 (2013), s.2179-2186
DOI:
Digital Object Identifier (open in new tab) 10.1140/epjst/e2013-01994-8
Verified by:
Gdańsk University of Technology

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