Using Plasma Etching to Access the Polymer Density Distribution and Diffusivity of Gel Particles
In this paper we examine the polymer density distribution of gel particles and its effect on solvent diffusivity through the polymer network. In order to access the inner particle regions, external polymer layers were removed by plasma etching, thus reducing them from the outside. Higher polymer den...
| Main Authors: | , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
| Published: |
MDPI
2021
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/12102 |
| _version_ | 1789406738928107520 |
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| author | Suarez, Ivan J. Sierra-Martin, Benjamin Fernandez-Barbero, Antonio |
| author_facet | Suarez, Ivan J. Sierra-Martin, Benjamin Fernandez-Barbero, Antonio |
| author_sort | Suarez, Ivan J. |
| collection | DSpace |
| description | In this paper we examine the polymer density distribution of gel particles and its effect on solvent diffusivity through the polymer network. In order to access the inner particle regions, external polymer layers were removed by plasma etching, thus reducing them from the outside. Higher polymer densities after erosion showed internal heterogeneity, with the density increasing towards the center of the particles. An exponential decay polymer density model is proposed, and the spatial relaxation length measured. The diffusion of solvent through the particles, before and after the plasma oxidation, revealed a correlation between the diffusion coefficient and the internal density. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-12102 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2021 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-121022023-04-12T19:48:32Z Using Plasma Etching to Access the Polymer Density Distribution and Diffusivity of Gel Particles Suarez, Ivan J. Sierra-Martin, Benjamin Fernandez-Barbero, Antonio pNIPAM minigel polymer density diffusion plasma etching In this paper we examine the polymer density distribution of gel particles and its effect on solvent diffusivity through the polymer network. In order to access the inner particle regions, external polymer layers were removed by plasma etching, thus reducing them from the outside. Higher polymer densities after erosion showed internal heterogeneity, with the density increasing towards the center of the particles. An exponential decay polymer density model is proposed, and the spatial relaxation length measured. The diffusion of solvent through the particles, before and after the plasma oxidation, revealed a correlation between the diffusion coefficient and the internal density. 2021-09-06T10:15:09Z 2021-09-06T10:15:09Z 2021-07-31 info:eu-repo/semantics/article 2073-4360 http://hdl.handle.net/10835/12102 en https://www.mdpi.com/2073-4360/13/15/2537 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI |
| spellingShingle | pNIPAM minigel polymer density diffusion plasma etching Suarez, Ivan J. Sierra-Martin, Benjamin Fernandez-Barbero, Antonio Using Plasma Etching to Access the Polymer Density Distribution and Diffusivity of Gel Particles |
| title | Using Plasma Etching to Access the Polymer Density Distribution and Diffusivity of Gel Particles |
| title_full | Using Plasma Etching to Access the Polymer Density Distribution and Diffusivity of Gel Particles |
| title_fullStr | Using Plasma Etching to Access the Polymer Density Distribution and Diffusivity of Gel Particles |
| title_full_unstemmed | Using Plasma Etching to Access the Polymer Density Distribution and Diffusivity of Gel Particles |
| title_short | Using Plasma Etching to Access the Polymer Density Distribution and Diffusivity of Gel Particles |
| title_sort | using plasma etching to access the polymer density distribution and diffusivity of gel particles |
| topic | pNIPAM minigel polymer density diffusion plasma etching |
| url | http://hdl.handle.net/10835/12102 |
| work_keys_str_mv | AT suarezivanj usingplasmaetchingtoaccessthepolymerdensitydistributionanddiffusivityofgelparticles AT sierramartinbenjamin usingplasmaetchingtoaccessthepolymerdensitydistributionanddiffusivityofgelparticles AT fernandezbarberoantonio usingplasmaetchingtoaccessthepolymerdensitydistributionanddiffusivityofgelparticles |