Decontamination of Chemical Warfare Agents by Novel Oximated Acrylate Copolymer

doi:10.1007/s40242-019-9105-6

Chemical Research in Chinese Universities ›› 2019, Vol. 35 ›› Issue (6): 1095-1104.doi: 10.1007/s40242-019-9105-6

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Decontamination of Chemical Warfare Agents by Novel Oximated Acrylate Copolymer

WEN Xianfang^1,3, YE Lin², CHEN Likun¹, KONG Lingce¹, YUAN Ling^1,3, XI Hailing^1,3, ZHONG Jinyi^1,3

1. State Key Laboratory of NBC Protection for Civilian, Beijing 102205, P. R. China;
2. School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China;
3. Research Institute of Chemical Defense, Beijing 102205, P. R. China

Received:2019-04-10 Revised:2019-07-24 Online:2019-12-01 Published:2019-11-29
Contact: YE Lin, XI Hailing E-mail:yelin@bit.edu.cn;hailing_xi@163.com
Supported by:
Supported by the Basic Research Foundation of the State Key Laboratory of NBC Protection for Civilians, China(No. SKLNBC2014-07).

Abstract

Abstract: A novel acrylate copolymer, polymethylacrylate-β-(bromoacetyl ethyl)ester-co-N,N-dimethylacrylamide[P(MABE-co-DMAA)] was synthesized by the copolymerization of N,N-dimethylacrylamide and methylacrylate-β-(bromoacetyl ethyl)ester. Subsequently, the copolymer was oximated by 4-pyridinium aldoxime(4-PAM), and was abbreviated as PAM-P(MABE-co-DMAA). A maximum oxime conversion of 53.7% was obtained. The as-prepared oximated copolymer PAM-P(MABE-co-DMAA) effectively decontaminated chemical warfare agents(CWAs) including methylphosphonofluoridate(sarin or GB), S-2-(diisopropylamino)ethyl O-ethyl methylphosphonothioate (VX), and 2,2'-dichloroethyl sulfide(sulfur mustard, or HD). The detoxification rates were 90.6% for GB, 85.7% for VX, and 90.5% for HD. Chromogenic analysis, high performance liquid chromatography-mass spectrometry (HPLC/MS) and gas chromatography-mass spectrometry(GC/MS) were used to identify the decontamination products, and the decontamination mechanism was concluded to be a combination of nucleophilic substitution and a second order Beckmann rearrangement. Furthermore, the active decontamination materials, such as decontamination cloths and covers could be made from the oximated copolymer by virtue of its processability, as well as its strong ability to degrade CWA.

Key words: Oximated copolymer, Chemical warfare agent, Decontamination material, Broad-spectrum decontamina-ting, Detoxification rate

WEN Xianfang, YE Lin, CHEN Likun, KONG Lingce, YUAN Ling, XI Hailing, ZHONG Jinyi. Decontamination of Chemical Warfare Agents by Novel Oximated Acrylate Copolymer[J]. Chemical Research in Chinese Universities, 2019, 35(6): 1095-1104.

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Decontamination of Chemical Warfare Agents by Novel Oximated Acrylate Copolymer

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