SEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.

Room-temperature ionic liquid (RTIL), which is a liquid salt at or below room temperature, shows peculiar physicochemical properties such as negligible vapor pressure and relatively-high ionic conductivity. In this investigation, we used six types of RTILs as a liquid material in the pretreatment pr...

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Autores principales:	Tetsuya Tsuda, Eiko Mochizuki, Shoko Kishida, Kazuki Iwasaki, Katsuhiko Tsunashima, Susumu Kuwabata
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f5aee1d377e04a78a250a095ef85548a
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spelling	oai:doaj.org-article:f5aee1d377e04a78a250a095ef85548a2021-11-18T08:28:31ZSEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.1932-620310.1371/journal.pone.0091193https://doaj.org/article/f5aee1d377e04a78a250a095ef85548a2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24621609/?tool=EBIhttps://doaj.org/toc/1932-6203Room-temperature ionic liquid (RTIL), which is a liquid salt at or below room temperature, shows peculiar physicochemical properties such as negligible vapor pressure and relatively-high ionic conductivity. In this investigation, we used six types of RTILs as a liquid material in the pretreatment process for scanning electron microscope (SEM) observation of hydrous superabsorbent polymer (SAP) particles. Very clear SEM images of the hydrous SAP particles were obtained if the neat RTILs were used for the pretreatment process. Of them, tri-n-butylmethylphosphonium dimethylphosphate ([P(4, 4, 4, 1)][DMP]) provided the best result. On the other hand, the surface morphology of the hydrous SAP particles pretreated with 1-ethyl-3-methylimidazolium tetrafluoroborate ([C2mim][BF4]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim][BF4]) was damaged. The results of SEM observation and thermogravimetry analysis of the hydrous SAP pretreated with the RTILs strongly suggested that most water in the SAP particles are replaced with RTIL during the pretreatment process.Tetsuya TsudaEiko MochizukiShoko KishidaKazuki IwasakiKatsuhiko TsunashimaSusumu KuwabataPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 3, p e91193 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tetsuya Tsuda Eiko Mochizuki Shoko Kishida Kazuki Iwasaki Katsuhiko Tsunashima Susumu Kuwabata SEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.
description	Room-temperature ionic liquid (RTIL), which is a liquid salt at or below room temperature, shows peculiar physicochemical properties such as negligible vapor pressure and relatively-high ionic conductivity. In this investigation, we used six types of RTILs as a liquid material in the pretreatment process for scanning electron microscope (SEM) observation of hydrous superabsorbent polymer (SAP) particles. Very clear SEM images of the hydrous SAP particles were obtained if the neat RTILs were used for the pretreatment process. Of them, tri-n-butylmethylphosphonium dimethylphosphate ([P(4, 4, 4, 1)][DMP]) provided the best result. On the other hand, the surface morphology of the hydrous SAP particles pretreated with 1-ethyl-3-methylimidazolium tetrafluoroborate ([C2mim][BF4]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim][BF4]) was damaged. The results of SEM observation and thermogravimetry analysis of the hydrous SAP pretreated with the RTILs strongly suggested that most water in the SAP particles are replaced with RTIL during the pretreatment process.
format	article
author	Tetsuya Tsuda Eiko Mochizuki Shoko Kishida Kazuki Iwasaki Katsuhiko Tsunashima Susumu Kuwabata
author_facet	Tetsuya Tsuda Eiko Mochizuki Shoko Kishida Kazuki Iwasaki Katsuhiko Tsunashima Susumu Kuwabata
author_sort	Tetsuya Tsuda
title	SEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.
title_short	SEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.
title_full	SEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.
title_fullStr	SEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.
title_full_unstemmed	SEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.
title_sort	sem observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/f5aee1d377e04a78a250a095ef85548a
work_keys_str_mv	AT tetsuyatsuda semobservationofhydroussuperabsorbentpolymerpretreatedwithroomtemperatureionicliquids AT eikomochizuki semobservationofhydroussuperabsorbentpolymerpretreatedwithroomtemperatureionicliquids AT shokokishida semobservationofhydroussuperabsorbentpolymerpretreatedwithroomtemperatureionicliquids AT kazukiiwasaki semobservationofhydroussuperabsorbentpolymerpretreatedwithroomtemperatureionicliquids AT katsuhikotsunashima semobservationofhydroussuperabsorbentpolymerpretreatedwithroomtemperatureionicliquids AT susumukuwabata semobservationofhydroussuperabsorbentpolymerpretreatedwithroomtemperatureionicliquids
_version_	1718421779202965504

SEM observation of hydrous superabsorbent polymer pretreated with room-temperature ionic liquids.

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