Formation of Water-Channel by Propylene Glycol into Polymer for Porous Materials

In this study, a porous membrane with a cellulose acetate (CA) matrix was fabricated using propylene glycol with a water pressure treatment without a metal salt as an additive. The water pressure treatment of the fabricated CA membrane with propylene glycol yielded nanopores. The nanopores were form...

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Autores principales:	Seong Ho Hong, Younghyun Cho, Sang Wook Kang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cellulose acetate water pressure pore generation propylene glycol hydration region hydrophilic functional group Chemical technology TP1-1185 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/d27567949711473082ef46550f2cbb15
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spelling	oai:doaj.org-article:d27567949711473082ef46550f2cbb152021-11-25T18:20:01ZFormation of Water-Channel by Propylene Glycol into Polymer for Porous Materials10.3390/membranes111108812077-0375https://doaj.org/article/d27567949711473082ef46550f2cbb152021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/881https://doaj.org/toc/2077-0375In this study, a porous membrane with a cellulose acetate (CA) matrix was fabricated using propylene glycol with a water pressure treatment without a metal salt as an additive. The water pressure treatment of the fabricated CA membrane with propylene glycol yielded nanopores. The nanopores were formed as the additives in the CA chains led to plasticization. The weakened chains of the parts where the plasticization occurred were broken by the water pressure, which generated the pores. Compared to the previous study with glycerin as an additive, the size of the hydration region was controlled by the number of hydrophilic functional groups. When water pressure was applied to the CA membrane containing propylene glycol as an additive, the hydration area was small, so it was effective to control the pore size and the number of nano pores than glycerin. In addition, the number of nanopores and pore size could be easily adjusted by the water pressure. The porosity of the membrane was increased owing to the trace amount of propylene glycol, confirmed by scanning electron microscopy (SEM) and porosimetry. The interaction between the CA and propylene glycol was verified by Fourier-transform infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). Consequently, it was the optimum composition to generate pores at the CA/propylene glycol 1:0.2 ratio, and porosity of 69.7% and average pore diameter of 300 nm was confirmed. Since it is a membrane with high porosity and nano sized pores, it is expected to be applied in various fields.Seong Ho HongYounghyun ChoSang Wook KangMDPI AGarticlecellulose acetatewater pressurepore generationpropylene glycolhydration regionhydrophilic functional groupChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 881, p 881 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cellulose acetate water pressure pore generation propylene glycol hydration region hydrophilic functional group Chemical technology TP1-1185 Chemical engineering TP155-156
spellingShingle	cellulose acetate water pressure pore generation propylene glycol hydration region hydrophilic functional group Chemical technology TP1-1185 Chemical engineering TP155-156 Seong Ho Hong Younghyun Cho Sang Wook Kang Formation of Water-Channel by Propylene Glycol into Polymer for Porous Materials
description	In this study, a porous membrane with a cellulose acetate (CA) matrix was fabricated using propylene glycol with a water pressure treatment without a metal salt as an additive. The water pressure treatment of the fabricated CA membrane with propylene glycol yielded nanopores. The nanopores were formed as the additives in the CA chains led to plasticization. The weakened chains of the parts where the plasticization occurred were broken by the water pressure, which generated the pores. Compared to the previous study with glycerin as an additive, the size of the hydration region was controlled by the number of hydrophilic functional groups. When water pressure was applied to the CA membrane containing propylene glycol as an additive, the hydration area was small, so it was effective to control the pore size and the number of nano pores than glycerin. In addition, the number of nanopores and pore size could be easily adjusted by the water pressure. The porosity of the membrane was increased owing to the trace amount of propylene glycol, confirmed by scanning electron microscopy (SEM) and porosimetry. The interaction between the CA and propylene glycol was verified by Fourier-transform infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). Consequently, it was the optimum composition to generate pores at the CA/propylene glycol 1:0.2 ratio, and porosity of 69.7% and average pore diameter of 300 nm was confirmed. Since it is a membrane with high porosity and nano sized pores, it is expected to be applied in various fields.
format	article
author	Seong Ho Hong Younghyun Cho Sang Wook Kang
author_facet	Seong Ho Hong Younghyun Cho Sang Wook Kang
author_sort	Seong Ho Hong
title	Formation of Water-Channel by Propylene Glycol into Polymer for Porous Materials
title_short	Formation of Water-Channel by Propylene Glycol into Polymer for Porous Materials
title_full	Formation of Water-Channel by Propylene Glycol into Polymer for Porous Materials
title_fullStr	Formation of Water-Channel by Propylene Glycol into Polymer for Porous Materials
title_full_unstemmed	Formation of Water-Channel by Propylene Glycol into Polymer for Porous Materials
title_sort	formation of water-channel by propylene glycol into polymer for porous materials
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d27567949711473082ef46550f2cbb15
work_keys_str_mv	AT seonghohong formationofwaterchannelbypropyleneglycolintopolymerforporousmaterials AT younghyuncho formationofwaterchannelbypropyleneglycolintopolymerforporousmaterials AT sangwookkang formationofwaterchannelbypropyleneglycolintopolymerforporousmaterials
_version_	1718411348679852032

Formation of Water-Channel by Propylene Glycol into Polymer for Porous Materials

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