硅倍半氧烷的合成及其在聚合中的應(yīng)用研究.pdf

1、浙江大學(xué)碩士學(xué)位論文硅倍半氧烷的合成及其在聚合中的應(yīng)用研究姓名：姚旭霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：沈之荃20060501浙江大學(xué)碩士學(xué)位論文Abstractinthispaper，akindofpartialcagepotyhedraloligomericsilsesquioxanes(POSS)，【PhSi(O)OH】4(T4)，hasbeensynthesizedandcharacterizedT4hasbee

2、nusedtopreparethesiliconebasedrareearthcompoundtoinitiatetheringopeningpolymerizationof￡CaprolactoneforthefirsttimeWehavestudiedtheeffectsof【CL]／[Wd]、n—butanol、temperature、time、polarityofthesolventonpolymerization，discov

3、eringthatthepolymerizationtemperatureisrangingfrom一20℃～70℃andsomewhatlivingpolymerizationcharactersaswellThepolymerizationmechanismis“coordinate。insert”confirmedbythe1H—NMRanalysisoftheendgroupofthePCLterminatedbyisoprop

4、an01Wealsoexploredtheappropriateconditionsfor￡一Caprolactoneringopeningpolymerizationusingthecatalystare：烈d卜0144mol／Linthecatalystsolution，[cu／[Nd]=1000(molarratio)，18“(2，bulkpolymerization，lh，andPCLwith92％conversionandab

5、out1104MyisobtainedInaddition，aseriesofPOSSwerosynthesizedstepbystepfromphenyltrichlorosilane，suchasoctaphenylsilsesquioxane(OPS)、octa(nitrophenyl)silsesquioxane(ONPSl、octa(aminophenyl)silsesquioxane(OAPS)、OAPSMACandOAPS