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Autor:
Katie J. Beckman, Nicholas B. Adelman, George C. Lisensky, Arthur B. Ellis, Dean J. Campbell, Patricia Berger
Publikováno v:
Journal of Chemical Education. 76:943
Ferrofluids are colloidal suspensions of surfactant-coated magnetic particles in a liquid medium. This paper describes a simple synthesis of an aqueous-based ferrofluid that may be used in an introductory science or engineering laboratory. Magnetite
Autor:
Camilo E. Calderon, Katie J. Beckman, Arthur B. Ellis, George C. Lisensky, Patrick W. Doolan, Dean J. Campbell, Rebecca M. Ottosen
Publikováno v:
Journal of Chemical Education. 76:537
This paper describes simple classroom demonstrations and laboratory experiments based on properties of polydimethylsiloxane (PDMS). PDMS is a colorless, transparent elastomer. Spheres cast from PDMS can be cross-linked to varying extents to affect th