聚乙烯醇水溶液中小分子反應(yīng)動(dòng)力學(xué).pdf

1、河北大學(xué)碩士學(xué)位論文聚乙烯醇水溶液中小分子反應(yīng)動(dòng)力學(xué)姓名：劉靜申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：高分子化學(xué)與物理指導(dǎo)教師：巴信武2000.6.1LAbstractAbstractItismuchinrestingtostudythediffusionofsmallmoleculesinpolymersolutionpartlybecausethistransparentphenomenaiswidelypresentinmanyfields，su

2、ch嬲chemicalengineering，pharmaceuticalindustryandclinicalmedicineetcAlthoughthediffusionofsmallmoleculesinthemediumsuchasgasesandliquidshasbeenstudiedindetailforthelongtime，thesameprocessesinpolymersolutionsWaSalsounclear

3、SincethediffusioncoefficientistheimportantparameterinthetransparentphenomenamuchoftheworksinthisfieldistomeasurcthisparameterwhichwasinfluencedbythepolymernetworksinthesolutionInfactthechemicalreactionofsmallmoleculesinp

4、olymersolutionisalsoaffectedbythediffusionfactorduetothepolymerchainsactasanobstructiontotransparentInthepaperthedecompositionreactionofhydrogenperoxideandiodine—clockreactioninthepolyvinylalcohol(PVA)solutionwereinvesti

5、gated，inwhichdifferentconcentrationofPVAandreactiontemperaturehavebeentakenintoconsideration，togivethedeviationfromthefastandthesecondorderreactionrespectivelyThereactiondiscussedinthepapermaybeserved夠themodelsystemforso

6、meoftheattractingstudies，forinstance，biochemistrychemicalengineering，cliulcalmedicine，chemicalengineering，andSOonInSeeIofthepaperthediffusionofthesmallmoleculeinpolymersolutionWaSreviewed，andthemainpurposeofthepaperWaSpr

7、oposedInSeeIIofthepaperthedecompositionreactionofhydrogenperoxideinPVAsolutionw勰studiedmdetailtodeducethedeviationfromthefirstorderreactionTheinfluenceoftheconcentrationofPVAreactiontemperature，stirringeffectandviscosity