Study on the Matching between Cross-Linked Polymer Microspheres and Nuclear-Pore Membranes

Abstract:

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The shape and size of the linked polymer microspheres and the matching between the microsphere size and nuclear-pore membranes were studied in this paper. Scanning electron microscopy(SEM), microscope, dynamic lighting scattering(DLS), Laser diffracting measurements, nuclear-pore film filtration and sand packed tube displacement experiment was adopted for investigation. The results showed that the original shape of the microspheres is typically spherical with a size range of 400-5000nm. When the microspheres were dispersed in water, swelling occurred, resulting in larger size but spherical conformation remained. And the system was poly-dispersed. There are certain matching relationships between the microsphere size and the membranes pore size, and the best plugging property could only occur when they are well-matched. Matching relationships also exist in the sand packed tube displacement experiment, when sand packed tubes with low permeability were used, plugging could occur effectively, and well in-depth plugging could happen as well.

Info:

Periodical:

Advanced Materials Research (Volumes 160-162)

Edited by:

Guojun Zhang and Jessica Xu

Pages:

1346-1353

DOI:

10.4028/www.scientific.net/AMR.160-162.1346

Citation:

M. Q. Lin et al., "Study on the Matching between Cross-Linked Polymer Microspheres and Nuclear-Pore Membranes", Advanced Materials Research, Vols. 160-162, pp. 1346-1353, 2011

Online since:

November 2010

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Price:

$35.00

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