以RAFT聚合方法為基礎(chǔ)合成功能性聚合物.pdf

1、中國(guó)科學(xué)技術(shù)大學(xué)碩士學(xué)位論文以RAFT聚合方法為基礎(chǔ)合成功能性聚合物姓名：劉俊申請(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：潘才元20050501中國(guó)科學(xué)技術(shù)大學(xué)碩士畢業(yè)論文ABSTRACTS，SBis(2一hydroxylethyl2butyrate)trithiocarbonate(BHEBT)，anoveltrithiocarbonatewithtwoterminalhydroxygroups，wasfirstsuccessf

2、ullysynthesizedinthepresenceofananion—exchangeresinwithOH’formAndthenitwasusedasthechaintransferagentinreversibleadditionfragmentationchaintransfer(RAFT)polymerizationsofstyreneormethylacrylate，thepolymerswithcontrollabl

3、emolecularweightsandnarrowmolecularweightdistributionsweresynthesized，whichwasdemonstratedbyGPCandkineticanalysisFurthermore，theseobtainedpolymerswithtrithiocarbonategroupinthemiddleofthechainswereusedasmacrochaintransfe

4、ragentsinthefurtherRAFTpolymerizations，andwell—definedtelechelichydroxyl—terminatedblockcopolymershavebeenpreparedThestructureswereconfirmedbytheir1Rand‘HNMRspectraBythesamilarmethod，anothernoveltrithiocarbonate，S，Sbis(1

5、一(((5一ethyl一2，2一dimethyl1，3一dioxane一5一y1)methoxy)carbonyl)propyl)trithiocarbonate(CTA—H)，wassynthesizedinthepresenceoftheanion—exchangeresinwithOH。formAndthenitwasusedasthechaintransferagentinRAFTpolymerizationsofstyrene

6、，thepolymerswithcontrollablemolecularweightsandnarrowmolecularweightdistributionsweresynthesized，whichwasdemonstratedbyGPCandkineticanalysisAftertheterminalacetonidegroupswasdeprotectedinthepresenceofacationexchangeresin

7、withHformthepolystyrenewithtwohydroxylgroupsineachchainendwaseasilyaffordedThen，theterminalhydroxylgroupsinpolystyrenewereusedasmacroinitiatorinthecationringopenpolymerization(CROP)of13dioxepane(DOP)，andthewelldefinedH—s

8、hapedamphiphilicblockcopolymers(PDOP)2PS(PDoP)2，weresuccessfullypreparedTheirIR，GPCandIHNMRspectra，andalsothoseoftheirhydrolysisproductsconfirmedthestructuresoftheobtainedH—shapedcopolymersKeywords：Trithiocarbonate；Telec