籠型倍半硅氧烷(POSS)及POSS-聚合物的合成研究.pdf

1、安徽理工大學碩士學位論文籠型倍半硅氧烷（POSS）及POSS聚合物的合成研究姓名：劉雪英申請學位級別：碩士專業(yè)：應用化學指導教師：馬家舉20110603安徽理工大學碩士學位論文Abs仃actPolyhedraloligomedcsilsesquioxane(Poss)wasanovelcompounds、加tllstructureofnanoscaleorganicinorganichybridwhichwasconsistedofth

2、ree—dimensionalSi—OSishortchain，andorganicsubstituentsinorganicframeworkduetoitssymmetricalcage—likestructure，itWaseasytodesignthemoleculesAccordingtotheverticesofdifferentorganicsubstituents，thePOSScouldbeintroducedtoth

3、edifferentsystemtoimprovedthethermalproperties，mechanicalproperties，mechanicalstrength，flameretardant，anti—oxidationanti—agingpropertiesofpolymersTherefore，todevelopanewtypeofPOSSandPOSS—basedpolymernanohybridmaterialsha

4、veanimportantacademicsignificanceandpracticalvalueOcta(7chloropropyl)polyhedraloligomericsilsesquioxane(aoss)WassynthesizedthroughthehydrolysisandcondensationreactionTherelationshipofreactionconditionsandyiledwerediscuss

5、edInaddition，POSS／PMMAWaspreparedsuccessfully，thecharacterizedandthethermalpropertiesofthesamplewerestudiedThemaincontentofthisdissertationisasfollows1Withhydrochloricacidascatalyst，Octa(Tchloropropyl)polyhedraloligomeri

6、csilsesquioxane(POSS)wassynthesizedthroughthehydrolysisandcondensationof丫chloropropyltrimethoxysilaneasrawmaterial，methanolassolventTheeffectsofreactiontime，reactiontemperature，feedingratioandsequeneontheyieldwereinvesti

7、gated，thenoptimumconditionswereobtainedandshowedtoben(Tchloropropyltrimethoxysilane)：n(hydrochloricacid)：n(methan01)220：15：400，thewholeprocesslasts15days，thetemperatureWaske：ptat40“12，ThemaximumyieldWas37％2Thestructuresa

8、ndpropertiesofocta(r—chloropropyl)polyhedraloligomericsilsesquioxane(POSS)werecharacterizedbyFouriertransforminfrared(FTIR)，Xraydiffraction(XRD)，Nuclearmagneticresonance(1HNMR，29SiNMR)andGelpermeationchromatography(GPC)T

9、heresultsshowthat：Octa0一chloropropyl)polyhedraloligomericsilsesquioxane(POSS)謝mllighpurityandasymmetricalcagestructureweresynthesized33POSS／PMMAcomplexweresynthesizedthroughtheatomtransferradicalpolymerization(ATRP)metho