Hadamard波譜和分子間交叉極化的研究.pdf

1、華東師范大學碩士學位論文Hadamard波譜和分子間交叉極化的研究姓名：張磊申請學位級別：碩士專業(yè)：無線電物理指導教師：楊光20050501ABSTRACTInthefirstchapterofthisthesis。aprogramiSdesignedtohelptoimplementHadamardspectroscopyItcangeneratethepulsesequencesusedinHadamardspectroscopyb

2、asedontheuserinputofparametersUserscanspecifYthenumberofexitationbands，thetotalsweepwidth，requiredresolutionetcTheprogramcanalsobeusedtodecodetheNIIRsignalacquiredintheHadamardexperimentSimulatedexperimentSonsimulatedsam

3、plewerecarriedouttovatidatetheprocessInthesecondchapter，apoly(ethyleneoxide)(PEO)／fullerene(C6n)compositewasstudiedbyhigh—resolutionsolidstateNMRspectroscopysystematicallyinordertostudytheinfluenceofcross—polarizationtim

4、eontheinter—molecularcross—polarizationexperimentsItwasfoundthatthecontacttimehasobviousinfluenceontheexDerimentalresultSoftheintermo]ecularcrosspolarizationexperiments，whichimpliesextracareshou]dbetakentoselectappropria

5、tecontacttjmewhenapplyingintermolecularcross—polarizationmethodtostudythephasestructuresofcompositesOntheotherhandvariationofcontacttimemayprovideanewdimensionfortheexperimentsdesignandenablesnewconclusionstobedrawnForex

6、ample，experimentalresultsinthiSworkshowthatnotallofC60isconfinedinthenoncrystallineregionofPEO，andatleastaportionoftheC60iSlocatednearthecrystalliReregionKEYWORDSHadamardSpectrum；DANTEsequence：P01ychromaticpulse：Solid—st