兩親性梳型共聚物PAA-g-PMMA的合成及其溶脹行為.pdf

1、青島科技大學碩士學位論文兩親性梳型共聚物PAAgPMMA的合成及其溶脹行為姓名：張鵬申請學位級別：碩士專業(yè)：高分子化學與物理指導教師：馮鶯20090611SYNTHESISANDSⅥ砸LLINGBEHAVIOROFAⅣ瞳HIPHILICCOMBLIKECOPOLYMERPAA—gPMMAABSTRACTmradicalcopolymerizationofacrylicacid(MOand4Vinylbenzylchlofide(M2)i

2、ndioxanewasfirstlystudiedAseriesofcopolyrnerswitlldifferentcompositionswereobtainedfromfeedratiosOfMl：M2=952：48to214：786Thecompositionandaveragemolecularweightsofacrylicacid(AA)and4VinylbenzylcModde(4vsc)copolymerswerede

3、terminedbyIR，1HNMRandGPCAccordingtothecompositionofP(AACOVBC)，thereactivityratiosofAA—VBCeopolymerizationsystemcalcmatedbytheFinemanRossmethodwererl=050a：006andr2152士O15，almomthesame嬲rl=043=1=021andr2=1314014bytheextende

4、dKelen—Tudosmethod啊1eresultsshowedthatrl1，andrl，21，andtheperformanceofAA—VBCcopolymerizationsystemisnonidealcopolymerizationAAincopolymerisalwayssmallerthanAAiIlfeedThecompositioncurveisalwaysbelowthediagonalOnthebasisof

5、thereactivityratiosoftwomonomers，thesequencelengthdistributionintheAAVBCcopolymersWasobtainedSequence—lengthdistributionofAAand4VBCintheAAVBCCOpolymersCanbeCOntrolledthroughchangeoffeedratiosFor3曼=477％，theprobabilityofth

6、e4VBCsequenceoflunitinthecopolymerchainiS938％，themonomerunitof4VBCismostlyseparatedbythesequenceofAA；andfor正3553％，theprobabilityofthe4VBCandAAsequenceof1unitintheCOpolymerchainisabove55％(alternatingtendencyprevails)，ther