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1、浙江大學(xué)碩士學(xué)位論文二甲苯異構(gòu)體分離用βCD交聯(lián)物PVA共混膜的制備姓名:蔡榮錫申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):生物化工指導(dǎo)教師:周志軍張林20070601AbstractItisdifficulttoseparatexyleneisomerswithtraditionalmethods,andithassomedefectforexamplehi曲energyconsumptionhi【ghpollutionandcomplexprocess
2、Pervaporationhasbeentheeffectiveandenergy翻啊ngtechniqueforseparationofxyleneisomersIftheCDsthathavetheselectivediscermnentforxyleneisomersareusedtoseparatexyleneisomers,whichisofgreatsignificancemtopicofthispaperistheprep
3、arationof[BCDerosslinkedpolymer/PVAblendmembraneandseparationofxyleneisomersBysmdymg011thismembrane,itwasexcepectedtofindouttherulesofmembraneformationandtomakeexcellentmembranesFirstintheworkthewatersolublecrosslinkedpo
4、lymersof13eyclodextrinwithepoxychloroproane①P)arepreparedinthealkalisolutionT11es血ucturesandmolecularweightofdifferentB—CDcrosslinkedpolymerswerecharacterizedbyIRandGPCTheresultsindicatedthatthesolubilityofB—CDerosslinke
5、dpolymerslinearlyincreasedwiththequafitityofEPandthemaximal∞lubilitywas6159,whichWaslarger30timesthansolubilityofBCDThemolecularweightalsologarithmiclyincreasedwiththequantityofEP,obtaining106FromtheIRwefoundthattheBCDcr
6、osslinkedpolymerspreservedtheoriginalcavitystructureonJBCDInthework,twokindsofmembranesWeTepreparednonbottomfilmandp—CDcrosslinkedpolymer/PVA/PAN(polyacrylonitrile)compositemembraneTheswellingbehaviorsofBCD—EP/PVAblendme
7、mbranesinxyleneisomershavebeeninvestigated,andthenitwasfoundtheswellingdegreesofblendmembranesarehigherthanthatofPVAmembrane,F(xiàn)inallythispaperinvestigatedtheinfluencefavorsofblendmembranepervaporationseparationproperties,
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