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Pulse radiolysis investigation of (OH)-O-center dot and H-center dot radicals initiated degradation reaction of sulfonated aromatics as model compounds for proton exchange membrane
Zu, JH; Liu, RQ; Wei, YZ; Wang, PY; Fu, HY; Tang, FD; He, LF; Zu, JH (reprint author), Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China.
2016
Source PublicationRESEARCH ON CHEMICAL INTERMEDIATES
ISSN0922-6168
Volume42Issue:4Pages:2883—2898
Subtype期刊文献
AbstractIn order to predict (center dot) OH and (center dot) H radicals initiated degradation of proton exchange membrane (PEM) based on polymers obtained by radiation-induced grafting of styrene or alpha-methylstyrene on different polyolefin, isopropyl benzene sulfonic acid (IPBS) and tert-butyl benzene sulfonic acid (TBBS) were taken as model compounds for PEM with and without alpha-H, respectively. Results indicated that (center dot) OH radicals played a vital role in PEM degradation. Eighty-nine percent of (center dot) OH radicals reacted with IPBS to form benzylic radicals by electron transfer and subsequent deprotonation reactions. Benzylic radicals can react with O-2 to form peroxyl radicals, which leads to PEM degradation. TBBS, without alpha-H, reacted with (center dot) OH or (center dot) H radicals, benzylic radicals would not be generated, and only adducts were formed. Adducts have less influence on the stability of TBBS than benzylic radicals. In this work, we elucidated that PEM, without alpha-H, with similar structures to TBBS, had a stronger resistance to oxidative degradation than PEM with alpha-H, with similar structures to IPBS.
KeywordAqueous-solutions Alpha-methylstyrene Styrene Sulfonate Steady-state Fuel-cells Oh Polymerization Durability
DOI10.1007/s11164-015-2184-1
Indexed BySCI
Language英语
WOS IDWOS:000372159200010
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25818
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorZu, JH (reprint author), Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China.
Recommended Citation
GB/T 7714
Zu, JH,Liu, RQ,Wei, YZ,et al. Pulse radiolysis investigation of (OH)-O-center dot and H-center dot radicals initiated degradation reaction of sulfonated aromatics as model compounds for proton exchange membrane[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2016,42(4):2883—2898.
APA Zu, JH.,Liu, RQ.,Wei, YZ.,Wang, PY.,Fu, HY.,...&Zu, JH .(2016).Pulse radiolysis investigation of (OH)-O-center dot and H-center dot radicals initiated degradation reaction of sulfonated aromatics as model compounds for proton exchange membrane.RESEARCH ON CHEMICAL INTERMEDIATES,42(4),2883—2898.
MLA Zu, JH,et al."Pulse radiolysis investigation of (OH)-O-center dot and H-center dot radicals initiated degradation reaction of sulfonated aromatics as model compounds for proton exchange membrane".RESEARCH ON CHEMICAL INTERMEDIATES 42.4(2016):2883—2898.
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