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JournalꢀNameꢀ
ꢀARTICLEꢀ
ox
lowerꢀthanꢀE
thanꢀ thatꢀ ofꢀ E
behaviorꢀtoꢀtheꢀstructure-relatedꢀcompounds.ꢀMoreover,ꢀtheꢀ
1
ꢀwithꢀtheꢀpeakꢀcurrentꢀaroundꢀ2ꢀtimesꢀhigherꢀ
nmꢀcanꢀbeꢀobservedꢀafterꢀeachꢀpryidinDeOꢀIw: 1a0s.1ꢀa0d39d/eCd6.TꢀCB0e3s4id0e9sH,ꢀ
theꢀintensityꢀofꢀtheꢀnewꢀabsorptionꢀbandꢀatꢀaroundꢀ680ꢀnmꢀ
a
isꢀhighlyꢀrelatedꢀtoꢀtheꢀpK ꢀofꢀpyridines,ꢀfurtherꢀprovidesꢀtheꢀ
ox
1
,ꢀ manifestingꢀ aꢀ similarꢀ potentialꢀ inversionꢀ
+•
absorptionꢀ spectraꢀ changeꢀ ofꢀ PA-OMe ꢀ afterꢀ addingꢀ
differentꢀ pyridinesꢀ wasꢀ presentedꢀ inꢀ Figureꢀ 3bꢀ toꢀ illustrateꢀ
theꢀstrengthꢀofꢀH-bondingꢀbetweenꢀPA-OMe ꢀandꢀpyridinesꢀ
additionalꢀsupportꢀforꢀtheꢀpresenceꢀofꢀH-bonding.ꢀ
+•
ꢀ
(a)
H
N
H
N
O
C
O
C
N
N
n
PA-OMe
H
H
3
CO
(b)
Proton Acceptor
pK
a
:
3.51
5.28
7.48
N
N
N
O
ꢀ
Figureꢀ3.ꢀ(a)ꢀTheꢀshiftꢀofꢀsecondꢀpotentialꢀforꢀPA-OMeꢀwithꢀdifferentꢀpK
a
ꢀofꢀpyridinesꢀ(36ꢀμmol)ꢀinꢀ0.1ꢀMꢀTBAP/CH
3
CN.ꢀ(b)ꢀTheꢀabsorptionꢀ
spectraꢀofꢀPA-OMeꢀwithꢀdifferentꢀpK
a
ꢀofꢀpyridinesꢀ(80ꢀμmol)ꢀinꢀ0.1ꢀMꢀTBAP/CH CN.ꢀ(polymerꢀfilmsꢀareaꢀaboutꢀ0.5ꢀcmꢀxꢀ1.1ꢀcm)ꢀ
3
Conclusionꢀ
3.ꢀ (a)ꢀY.ꢀGe,ꢀR.ꢀR.ꢀLilienthalꢀandꢀD.ꢀK.ꢀSmith,ꢀJ.ꢀAm.ꢀChem.ꢀSoc.,ꢀ
996,ꢀ118,ꢀ3976;ꢀ(b)ꢀY.ꢀGe,ꢀL.ꢀMiller,ꢀT.ꢀOuimetꢀandꢀD.ꢀK.ꢀ
1
Inꢀsummary,ꢀthisꢀworkꢀreportsꢀtheꢀsynthesisꢀofꢀtriarylamine-
basedꢀhigh-performanceꢀpolyamidesꢀwithꢀsecondaryꢀamineꢀ
andꢀ theirꢀ electrochemicalꢀ detectionꢀ ofꢀ pyridinesꢀ
characterizedꢀ byꢀ potentialꢀ inversionꢀ resultingꢀ fromꢀ H-
bondingꢀ interaction.ꢀ Pyridinesꢀ withꢀ differentꢀ substituentꢀ
andꢀ pKa’s,ꢀ haveꢀ beenꢀ manifestedꢀ byꢀ theꢀ effectꢀ onꢀ
electrochemicalꢀpropertiesꢀofꢀtheꢀpolyamides.ꢀTheꢀpotentialꢀ
inversionꢀ couldꢀ beꢀ obviouslyꢀ observedꢀ byꢀ CVꢀ diagramsꢀ asꢀ
Me3Pyꢀisꢀapplied,ꢀwhichꢀisꢀalsoꢀsupportedꢀbyꢀin-situꢀUV-visꢀ
absorptionꢀmeasurement.ꢀThus,ꢀtheseꢀresultsꢀdemonstrateꢀ
thatꢀtheꢀtriarylamine-basedꢀpolymersꢀcontainingꢀsecondaryꢀ
amineꢀcanꢀeffectivelyꢀinteractꢀwithꢀprotonꢀacceptorꢀtoꢀformꢀ
ionicꢀ hydrogenꢀ bondingꢀ andꢀ thisꢀ phenomenonꢀ canꢀ beꢀ
successfullyꢀ monitoredꢀ byꢀ cyclicꢀ voltammogramꢀ diagramsꢀ
andꢀabsorptionꢀspectra.ꢀ
Smith,ꢀJ.ꢀOrg.ꢀChem.,ꢀ2000,ꢀ65,ꢀ8831;ꢀ(c)ꢀY.ꢀGeꢀandꢀD.ꢀK.ꢀ
Smith,ꢀAnal.ꢀChem.,ꢀ2000,ꢀ72,ꢀ1860;ꢀ(d)ꢀJ.ꢀBu,ꢀN.ꢀD.ꢀLilienthal,ꢀ
J.ꢀE.ꢀWoods,ꢀC.ꢀE.ꢀNohrden,ꢀK.ꢀT.ꢀHoang,ꢀD.ꢀTruongꢀandꢀD.ꢀK.ꢀ
Smith,ꢀJ.ꢀAm.ꢀChem.ꢀSoc.,ꢀ2005,ꢀ127,ꢀ6423;ꢀ(e)ꢀC.ꢀChan-
Leonor,ꢀS.ꢀL.ꢀMartinꢀandꢀD.ꢀK.ꢀSmith,ꢀJ.ꢀOrg.ꢀChem.,ꢀ2005,ꢀ70,ꢀ
1
0817.ꢀ
4
.ꢀ Y.-C.ꢀChung,ꢀY.-J.ꢀTu,ꢀS.-H.ꢀLu,ꢀW.-C.ꢀHsu,ꢀK.ꢀY.ꢀChiuꢀandꢀY.ꢀO.ꢀ
Su,ꢀOrg.ꢀlett.,ꢀ2011,ꢀ13,ꢀ2826.ꢀ
5.ꢀ (a)ꢀD.ꢀH.ꢀEvansꢀandꢀK.ꢀHu,ꢀJ.ꢀChem.ꢀSoc.ꢀFaradayꢀTrans.,ꢀ1996,ꢀ
2,ꢀ3983;ꢀ(b)ꢀN.ꢀA.ꢀMacías-RuvalcabaꢀandꢀD.ꢀH.ꢀEvans,ꢀJ.ꢀPhys.ꢀ
9
Chem.ꢀB,ꢀ2006,ꢀ110,ꢀ5155.ꢀ
6
ꢀ
.ꢀ P.ꢀHapiot,ꢀL.ꢀD.ꢀKispert,ꢀV.ꢀV.ꢀKonovalovꢀandꢀJ.-M.ꢀSavéant,ꢀJ.ꢀ
Am.ꢀChem.ꢀSoc.,ꢀ2001,ꢀ123,ꢀ6669.ꢀ
Notesꢀandꢀreferencesꢀ
1
.ꢀ (a)ꢀR.ꢀBao,ꢀC.ꢀWang,ꢀL.ꢀDong,ꢀR.ꢀYu,ꢀK.ꢀZhao,ꢀZ.ꢀL.ꢀWangꢀandꢀC.ꢀ
Pan,ꢀAdv.ꢀFunct.ꢀMater.,ꢀ2015,ꢀ25,ꢀ2884;ꢀ(b)ꢀM.ꢀM.ꢀBarsan,ꢀM.ꢀ
E.ꢀGhicaꢀandꢀC.ꢀM.ꢀA.ꢀBrett,ꢀAnalyticaꢀChimicaꢀActa,ꢀ2015,ꢀ
8
81,ꢀ1;ꢀ(c)ꢀS.-Y.ꢀKuo,ꢀH.-H.ꢀLi,ꢀP.-J.ꢀWu,ꢀC.-P.ꢀChen,ꢀY.-C.ꢀHuangꢀ
andꢀY.-H.ꢀChan,ꢀAnal.ꢀChem.,ꢀ2015,ꢀ87,ꢀ4765.ꢀ
2
.ꢀ N.ꢀGuptaꢀandꢀH.ꢀLinschitz,ꢀJ.ꢀAm.ꢀChem.ꢀSoc.,ꢀ1997,ꢀ119,ꢀ6384.ꢀ
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