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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedad Mexicana de Física A.C.
2004
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=57050614 |
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| _version_ | 1866585754561413120 |
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| author | P. Díaz Leyva |
| author_facet | P. Díaz Leyva |
| contents | Brownian motion of optically anisotropic particles in weak polymer gels P. Díaz Leyva J.L. Arauz Lara E. Pérez Física, Astronomía y Matemáticas gels rotational diffusion Dynamic light scattering The translational and rotational dynamics of optically anisotropic colloidal particles in viscoelastic polymer gels is studied by dynamic lightscattering. Polymer gels are formed by polymerization of acrylamide and bis-acrylamide, as cross-linking agent, in water. Particles withcrystalline internal structure are made by emulsification of liquid crystal at the nematic phase and a further consolidation. In this work weconsider only low fractions of cross-linking, where the systems are ergodic and gaussian statistics is valid. Experimental results for therotational and translational mean squared displacements, showing the effect of the systems viscoelasticity on both diffusion modes, can befitted to an extended model of Brownian particles harmonically bounded to a multicomponent of weak elastic restoring forces. 2004 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57050614 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.Re6 Vol.50 |
| format | Artículo científico |
| id | redalyc_57050614 |
| language | en |
| publishDate | 2004 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Brownian motion of optically anisotropic particles in weak polymer gels P. Díaz Leyva Física, Astronomía y Matemáticas gels rotational diffusion Dynamic light scattering Brownian motion of optically anisotropic particles in weak polymer gels P. Díaz Leyva J.L. Arauz Lara E. Pérez Física, Astronomía y Matemáticas gels rotational diffusion Dynamic light scattering The translational and rotational dynamics of optically anisotropic colloidal particles in viscoelastic polymer gels is studied by dynamic lightscattering. Polymer gels are formed by polymerization of acrylamide and bis-acrylamide, as cross-linking agent, in water. Particles withcrystalline internal structure are made by emulsification of liquid crystal at the nematic phase and a further consolidation. In this work weconsider only low fractions of cross-linking, where the systems are ergodic and gaussian statistics is valid. Experimental results for therotational and translational mean squared displacements, showing the effect of the systems viscoelasticity on both diffusion modes, can befitted to an extended model of Brownian particles harmonically bounded to a multicomponent of weak elastic restoring forces. 2004 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57050614 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.Re6 Vol.50 |
| title | Brownian motion of optically anisotropic particles in weak polymer gels |
| topic | Física, Astronomía y Matemáticas gels rotational diffusion Dynamic light scattering |
| url | https://www.redalyc.org/articulo.oa?id=57050614 |