Networking properties of cyclodextrin-based cross-linked polymers probed by inelastic light-scattering experiments.
J Phys Chem B
; 116(17): 5323-7, 2012 May 03.
Article
em En
| MEDLINE
| ID: mdl-22497332
ABSTRACT
An integrated experimental approach, based on inelastic light-scattering techniques, has been here employed for a multilength scale characterization of networking properties of cyclodextrin nanosponges, a new class of cross-linked polymeric materials built up from natural oligosaccharides cyclodextrins. By using Raman and Brillouin scattering experiments, we performed a detailed inspection of the vibrational dynamics of these polymers over a wide frequency window ranging from gigahertz to terahertz, with the aim of providing physical descriptors correlated to the cross-linking degree and elastic properties of the material. The results seem to suggest that the stiffness of cross-linked polymers can be successfully tuned by acting on the type and the relative amount of the cross-linker during the synthesis of a polymer matrix, predicting and controlling their swelling and entrapment properties. The proposed experimental approach is a useful tool for investigating the structural and physicochemical properties of polymeric network systems.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Polímeros
/
Ciclodextrinas
/
Luz
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article