RAFT法合成PAA和PAA-PAMPS及阻垢性能研究.pdf

1、密級(jí)⑧學(xué)校代碼：10055學(xué)號(hào)：020538高愁犬淫’NankaiUniversity口論文題目：RAFT法合成PAA禾nPAA—PAMPS九當(dāng)‘■／L一欲及阻垢性能研究碩士學(xué)位論文MASTER’SDISSERl≯丁10N培養(yǎng)院系：絲堂堂瞳。一級(jí)學(xué)科：絲星二級(jí)學(xué)科：高坌壬絲堂生塑堡論文作者：丟往指導(dǎo)教師：聞虐生熬攮南開大學(xué)研究生院2005年5月栽篡泰警；蔫算壘，’二菇“●●■I_l莉月共南開火學(xué)碩士論文⑨英文摘要AbstractInth

2、ispaper，wewouldliketeportalleasysynthesisofcarboxyl—terminatedtrithiocarbonatesTheSSBis(RRdimethyl—R”一aceticacid)trithiocarbonatehaveextremelyhighchain—transferefficiencyandcontrolovertheradicalpolymerizationbecausetheca

3、rbonattachedtothelabilesulfuratomistertiaryandbearsaradical—stabilizingcarboxylgroupTeleeheliccarboxyl—terminatedpolymersareeasilyobtainedwhendicarboxyltrithiocarbonateisemployedAllthepolymerizationswerewellcontrolledwit

4、hrelativelylowpolydispersitiesScalingisanubiquitousphenomenonincoolingwatersystem，Atpresent，scaleinhibitorshavealreadybeenusedasoneofthemostusualmethodsofscalecontrollingInthispaperacrylicacidpolymer(PAAlandPAA—PAMPScopo

5、lymerthathavedifferentmolecularweighthavebeenpreparedusingreversibleaddition—fragmentationchaintransferpolymerization(RAFT)Therelationshipsbetweentheinhibitionfunctionandpolymeramountadded，C一concentration，temperatureandt

6、imeofthesolutionhavebeendiscussedbystaticanti—scalingmethodTheresultsshowedthattheacrylicpolymerpossessedgoodeffectonreducingscaleinhibitionofCaC03withawiderangetemperature，particularlythescaleinhibitionefficiencyofacryl

7、icpolymerwhosemolecularweightis2000againstCaC03wasaboveninetypercentwith8mg／LpolymerThescaleinhibitionfunctionwassignificantwithasmallamountofpolymerPAAPAMPShadanexcellentefficientofscaleinhibitionagainstCa3(P04)2andgood

8、againstCaC03，ThescaleinhibitionefficiencyagainstCa3(P04)2wasabove90％with8mg／Lcopolymer，sothetwopolymercanbeusedasscaleinhibitorincoolingwaterforindustrialcirculatingwaterKeywords：reversibleaddition—fragmentationchaintran