新型磺化聚醚硯類(lèi)質(zhì)子交換膜的制備和性能研究.pdf

1、南京理工大學(xué)碩士學(xué)位論文新型磺化聚醚硯類(lèi)質(zhì)子交換膜的制備和性能研究姓名：高智琳申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：環(huán)境工程指導(dǎo)教師：陳守文20100601Abstract碩士論文AbstractAseriesofnoveIblendandmultiblockprotonexchangemembranesderivedfromsulfonatedpoly(aryleneether)ssulfones(SPAES)werepreparedTleeffe

2、ctsoftheformofsulfonatesanddifferentbiphenolsonthepropertiesoftheresultingmembranes，suchaswateruptake，dimensionalchangeandprotonconductivitywereinvestigatedindetailsTheSPAEScopolymersinsodiumsaltform斛一type)weredirectlyco

3、polymerizedfrom3，Ydisulfonate4，4difluorodiphenylsulfone(SDFDPS)，44difluorodiphenylsulfone(DFDPS)and44biphenol(BP)Afterprotonexchangeandneutralizationbytriethylamine，NtypeSPAEScopolymerswereconvenedintotriethylaiminesaltf

4、orm(Ttype)NtypeandT—typeblendSPAESmembraneswithdifferentsulfonationdegreeswerepreparedfromcorrespondingN—typeandTtypeSPAEScopolymers，respectivelyComparingwithN—typeblendmembranes，theTtypeonesshowedbettertransparencyanddi

5、mensionalstabilityaswellashigherconductivityatsimilarIEClevel，indicatingthebettermiscibilityAtthesimilarIEClevel，bothtypesofblendmembranesshowednoobviousvariationindimensionalchangecomparedwiththemembraneswithoutblending

6、butlowerwateruptakesRandomSPAEScopolymers(HSPAES—r)andblockSPAEScopolymers(HSPAES—b)weresynthesizedfromSDFDPS，DFDPSandhexafluorobisphenoiA(HFBPA)ThesecopolymersshowedgoodfilmformingabilityAtthesameIEClevels，HSPAES—rmembr

7、anesexhibitedhigherwateruptakeandlowerdimensionalchangeinthicknessdirectionthanthecorrespondingHSPAES—bonesHoweverthelattersexhibitedhigherprotonconductivitiesForexample，theprotonconductivityofHSPAES—randHSPAES—r(5／5)10w

8、ere160mS／cmand204mS／cminwaterat60oC，respectivelyAserialofSPAEScopolymersweresynthesizedbyvaryingthebisphenolmoietiesandinvestigatedtheirpropertiesindetailsAtthesimilarIEClevels，themembranesdedvedfrom4，4(9一Fluorenylidene)

9、diphenol(FSPAES)showedthebestdimensionalstabitlitybutslightlylowerprotonconductivities；Ontheotherhand，themembranesderivedfrom44Biphenol(BP)showedhigherprotonconductivities，forexample，theprotonconductivityreachedl22mS／cmi

10、nwaterat60oCwiththesulfonationdegreeof40％RandomandmultiblockcopolymershavingbothBHPFandBPmoieties，namedasFSPAESrandFSPAESb，respectively，weresynthesizedfromSDFDPS，DFDPS，BPandBHPFComparingwiththemembranesderivedfromsinglek