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Engineering Toolbox for Systematic Design of PolyHIPE Architecture
Polymerization of high internal phase emulsions (polyHIPEs) is a well-established method for the production of high porosity foams. Researchers are often regulated to using a time-intensive trial and error approach to achieve target pore architectures. In this work, we performed a systematic study t...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124597/ https://www.ncbi.nlm.nih.gov/pubmed/34064400 http://dx.doi.org/10.3390/polym13091479 |
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author | Dhavalikar, Prachi Shenoi, Jason Salhadar, Karim Chwatko, Malgorzata Rodriguez-Rivera, Gabriel Cheshire, Joy Foudazi, Reza Cosgriff-Hernandez, Elizabeth |
author_facet | Dhavalikar, Prachi Shenoi, Jason Salhadar, Karim Chwatko, Malgorzata Rodriguez-Rivera, Gabriel Cheshire, Joy Foudazi, Reza Cosgriff-Hernandez, Elizabeth |
author_sort | Dhavalikar, Prachi |
collection | PubMed |
description | Polymerization of high internal phase emulsions (polyHIPEs) is a well-established method for the production of high porosity foams. Researchers are often regulated to using a time-intensive trial and error approach to achieve target pore architectures. In this work, we performed a systematic study to identify the relative effects of common emulsion parameters on pore architecture (mixing speed, surfactant concentration, organic phase viscosity, molecular hydrophobicity). Across different macromer chemistries, the largest magnitude of change in pore size was observed across surfactant concentration (~6 fold, 5–20 wt%), whereas changing mixing speeds (~4 fold, 500–2000 RPM) displayed a reduced effect. Furthermore, it was observed that organic phase viscosity had a marked effect on pore size (~4 fold, 6–170 cP) with no clear trend observed with molecular hydrophobicity in this range (logP = 1.9–4.4). The efficacy of 1,4-butanedithiol as a reactive diluent was demonstrated and provides a means to reduce organic phase viscosity and increase pore size without affecting polymer fraction of the resulting foam. Overall, this systematic study of the microarchitectural effects of these macromers and processing variables provides a framework for the rational design of polyHIPE architectures that can be used to accelerate design and meet application needs across many sectors. |
format | Online Article Text |
id | pubmed-8124597 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-81245972021-05-17 Engineering Toolbox for Systematic Design of PolyHIPE Architecture Dhavalikar, Prachi Shenoi, Jason Salhadar, Karim Chwatko, Malgorzata Rodriguez-Rivera, Gabriel Cheshire, Joy Foudazi, Reza Cosgriff-Hernandez, Elizabeth Polymers (Basel) Article Polymerization of high internal phase emulsions (polyHIPEs) is a well-established method for the production of high porosity foams. Researchers are often regulated to using a time-intensive trial and error approach to achieve target pore architectures. In this work, we performed a systematic study to identify the relative effects of common emulsion parameters on pore architecture (mixing speed, surfactant concentration, organic phase viscosity, molecular hydrophobicity). Across different macromer chemistries, the largest magnitude of change in pore size was observed across surfactant concentration (~6 fold, 5–20 wt%), whereas changing mixing speeds (~4 fold, 500–2000 RPM) displayed a reduced effect. Furthermore, it was observed that organic phase viscosity had a marked effect on pore size (~4 fold, 6–170 cP) with no clear trend observed with molecular hydrophobicity in this range (logP = 1.9–4.4). The efficacy of 1,4-butanedithiol as a reactive diluent was demonstrated and provides a means to reduce organic phase viscosity and increase pore size without affecting polymer fraction of the resulting foam. Overall, this systematic study of the microarchitectural effects of these macromers and processing variables provides a framework for the rational design of polyHIPE architectures that can be used to accelerate design and meet application needs across many sectors. MDPI 2021-05-04 /pmc/articles/PMC8124597/ /pubmed/34064400 http://dx.doi.org/10.3390/polym13091479 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Dhavalikar, Prachi Shenoi, Jason Salhadar, Karim Chwatko, Malgorzata Rodriguez-Rivera, Gabriel Cheshire, Joy Foudazi, Reza Cosgriff-Hernandez, Elizabeth Engineering Toolbox for Systematic Design of PolyHIPE Architecture |
title | Engineering Toolbox for Systematic Design of PolyHIPE Architecture |
title_full | Engineering Toolbox for Systematic Design of PolyHIPE Architecture |
title_fullStr | Engineering Toolbox for Systematic Design of PolyHIPE Architecture |
title_full_unstemmed | Engineering Toolbox for Systematic Design of PolyHIPE Architecture |
title_short | Engineering Toolbox for Systematic Design of PolyHIPE Architecture |
title_sort | engineering toolbox for systematic design of polyhipe architecture |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124597/ https://www.ncbi.nlm.nih.gov/pubmed/34064400 http://dx.doi.org/10.3390/polym13091479 |
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