TY - JOUR
T1 - Enhanced hydroxide ion conductivity of imidazolium functionalized poly (ether ether ketone) membrane by incorporating N,N,N′,N′-tetramethyl-1,4-phenylenediamine
AU - Xu, Mingzhao
AU - Gang, Mingyue
AU - Cao, Li
AU - He, Xueyi
AU - Song, Yimeng
AU - Jiang, Zhongyi
AU - Wu, Hong
AU - Su, Yanlei
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Anion-exchange membranes (AEM) are prepared from chloromethylated poly(ether ether ketone) (CMPEEK), which is quaternized by N,N,N′,N′-tetramethyl-1,4-phenylenediamine (TMPD) and 1-methylimidazole using a two-step method. TMPD can not only improve the mechanical properties but also provide more ion exchange groups and improve the availability of quaternary ammonium (QA) groups. By varying the amount of TMPD in the membrane casting solution, the comprehensive properties of the membranes are optimized and intensified. The anion conductivity is increased from 0.028 S cm−1 of the imidazolium functionalized poly (ether ether ketone) (ImPEEK) control membrane to 0.042 S cm−1 of the TMPD/ImPEEK membrane with a TMPD content of 5 wt%. Meanwhile, a 31.5% increase in ultimate tensile strength and a 27.8% increase in Young's modulus of the TMPD/ImPEEK membrane are achieved. This study exploited a facile approach to solving the trade-off relation between anion conductivity and mechanical properties.
AB - Anion-exchange membranes (AEM) are prepared from chloromethylated poly(ether ether ketone) (CMPEEK), which is quaternized by N,N,N′,N′-tetramethyl-1,4-phenylenediamine (TMPD) and 1-methylimidazole using a two-step method. TMPD can not only improve the mechanical properties but also provide more ion exchange groups and improve the availability of quaternary ammonium (QA) groups. By varying the amount of TMPD in the membrane casting solution, the comprehensive properties of the membranes are optimized and intensified. The anion conductivity is increased from 0.028 S cm−1 of the imidazolium functionalized poly (ether ether ketone) (ImPEEK) control membrane to 0.042 S cm−1 of the TMPD/ImPEEK membrane with a TMPD content of 5 wt%. Meanwhile, a 31.5% increase in ultimate tensile strength and a 27.8% increase in Young's modulus of the TMPD/ImPEEK membrane are achieved. This study exploited a facile approach to solving the trade-off relation between anion conductivity and mechanical properties.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0167273817311608
UR - http://www.scopus.com/inward/record.url?scp=85052432737&partnerID=8YFLogxK
U2 - 10.1016/j.ssi.2018.08.009
DO - 10.1016/j.ssi.2018.08.009
M3 - Article
SN - 0167-2738
VL - 325
SP - 163
EP - 169
JO - Solid State Ionics
JF - Solid State Ionics
ER -