Swelling kinetics of anisotropic filler loaded PDMS networks.
The kinetics of swelling of spherical poly(dimethyl siloxane) (PDMS) composite networks in cyclohexane has been studied. The PDMS composite gels contain magnetite and iron particles built in the network either in randomly distributed form or in chain-like structure. The composite gel becomes anisotropic in the terms of both, mechanical and swelling properties. As a consequence the swelling kinetics can be characterized by direction dependent relaxation time. The swelling kinetics of these samples has been compared to that of pure PDMS gels. It was found that Li-Tanaka theory can be applied to describe the swelling kinetics of PDMS network.
Department of Physical Chemistry, HAS-BME Laboratory of Soft Matter, Budapest University of Technology and Economics, 1521 Budapest, Hungary. zrinyi@mail.bme.hu
Tibor
T
Hajsz
Ildikó
I
Csetneki
Genovéva
G
Filipcsei
Miklós
M
Zrinyi
D016880:Anisotropy; D001672:Biocompatible Materials / Q000737:chemistry*; D003510:Cyclohexanes / Q000737:chemistry; D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D005782:Gels / Q000737:chemistry*; D007700:Kinetics; D008422:Materials Testing; D009757:Nylons / Q000737:chemistry*; D013499:Surface Properties
D001672:Biocompatible Materials; D003510:Cyclohexanes; D004129:Dimethylpolysiloxanes; D005782:Gels; D009757:Nylons; C085707:poly(dimethylsiloxane)-polyamide copolymer