環(huán)氧乙烷環(huán)氧丙烷共聚醚大單體的合成及其與有機(jī)硅的接枝.pdf

1、浙江大學(xué)碩士學(xué)位論文環(huán)氧乙烷環(huán)氧丙烷共聚醚大單體的合成及其與有機(jī)硅的接枝姓名：李曉霞申請學(xué)位級別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：戚國榮2002.1.1塑堊查蘭堡主蘭垡堡苧!!!!!!———AbstractThecopolymerizationofethyleneoxide(EO)andpropyleneoxide(PO)catalyzedbydgublemetalcyanide￡Qn船lgx(DMC)wascarriedout，i

2、nthepresenceofaallylalcoholasinitiatorThecharactersofcopolymerizationwereinvestigatedTheeffectsofaserialsofinfluencefactorsonhydrosilationhavebeendiscussedDMCbasedonZn3[Co(CN)6]2‘a(chǎn)ZnCl2‘bH20‘cLwerepreparedTheeffectsofstr

3、ucture，coordinationagentandcompositionofcatalystoncatalystactivitywerestudiedItrevealedthattheactivityofDMCismuchbetterthanthatofKOHThepolymeryieldisabout1Okg／gcatundertheexperimentconditionThemolecularweightofcopolymerC

4、aneasilybeadjustedandcalculatedbychangingtheratioofmonomertoinitiatorwhichiscoincidentwitllthatobtainedbyGPCThemicrostructureofcopolymerwascharacterizedwithNMRandIR，whichrevealedthatthecopolymerhasarandomdistributionofco

5、mpositionTheprocessofpurifyingpolyetherwascarriedoutwitllKOHandH3P04鵲disposalagentanddiatomiteasabsorbent，theremainconcentrationofmetalionislessthan20ppmThereactiontimevariedwiththeamountofcatalystTheoptimaltemperatureof

6、thereactionwas110℃for4～8handtheoptimalamountofcatalystisintherangeof002～0039in500mlreactorTheeffectsofthepresenceofterminalhydroxyl，catalystconcentration，temperatureandhydrogencontentonthehydrosilationwereexaminedTheinfl

7、uenceofthestructureofpolyorganosiloxanegraftpolyetheronsurfacetensionofwaterwasinvestigatedtooItwasfoundthatthepresenceofterminalhydroxylinhydrosilationCallbeignoredTheoptimalconditionsofthegraftreactionfire；1oo5“Cfor7h，

8、bulkpolymerization，feedingpolyorganosiloxaneComparedwithL：58Qakindofsurfactant，thesurfacetensionandturbidpointofpolyorganosiloxanegraftpolymerCanbeadjustedrespectivelyKeyword：allylalcohol，DMC，hydrosilation，polyorganosilo