Toward a detoxification fabric against nerve gas agents:guanidine-functionalized poly[ 2-(3-utenyl)-2-oxazoline]/Nylon-6,6nanofibers

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/486355.do
DOI
10.1039/c7ra01278k
Title
Toward a detoxification fabric against nerve gas agents:guanidine-functionalized poly[ 2-(3-utenyl)-2-oxazoline]/Nylon-6,6nanofibers
Description
This work was supported by a National Research Foundation of Korea (NRF)grant funded by the Korean Government (MSIP) (Sub. No.2015R1D1A1A01060467 and 2013M3A6A5073175). This work was also supportedby the Agency for Defense Development (Sub. No. UD150014ID).
abstract
A novel guanidine-functionalized polymer, poly[2-(3-butenyl)-2-oxazoline] (PBuOxz), has been co-lectrospun with Nylon-6,6 to form fibers that could be used for the decontamination of chemical warfare agents (CWAs). PBuOxz was obtained from the living cationic polymerization of 2-(3-butenyl)-2-oxazoline, which was synthesized starting from 4-pentenoic acid. This clickable PBuOxz polymer could be easily functionalized through the introduction of amine groups via thiol-ene click chemistry, followed by guanidinylation to form guanidine-functionalized PBuOxz (G-PBuOxz). The synthesized G-PBuOxz/Nylon-6,6 fibers are an active hydrolysis species for diisopropyl fluorophosphate (DFP), an organophosphate mimic of nerve agents. The decontamination efficiency for DFP could be as high as 100% under trace aqueous solution conditions using this G-PBuOxz/Nylon-6,6 fiber as the decontamination agent at the ratio of [guanidine]/[DFP] = 100/1 in 2 hours. The hydrolysis occurs via a general SN2 mechanism for this G-PBuOxz-based catalysis. Furthermore, the kinetics of decontamination were also investigated based on time and guanidine concentration. Hence, this G-PBuOxz/Nylon-6,6 fiber is effective as a hydrolyzing agent against toxic organophosphates, and thus exhibits potential as a material for protecting against chemical warfare agents.
provenance
Made available in Cube on 2018-09-28T16:05:23Z (GMT). No. of bitstreams: 0
language
English
author
Ying, Wu Bin
Kim, Sohee
Lee, Min Woo
Go, Na Yeong
Jung, Hyunsook
Ryu, Sam Gon
Lee, Bumjae
Lee, Kyung Jin
accessioned
2018-09-28T16:05:23Z
available
2018-09-28T16:05:23Z
issued
2017
citation
RSC ADVANCES(7): 25
issn
2046-2069
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/486355.do
Funder
과학기술정보통신부
Funding Program
글로벌프론티어지원
Project ID
1711053223
Jurisdiction
Rep.of Korea
Project Name
Development of Soft Nanomaterials for Flexible Sensors
rights
openAccess
type
article


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