Abstract
AbstractIn this paper, γ-valerolactone (GVL), a bio-based polar solvent, was applied as green solvent for iron(III)-catalyzed AGET ATRP without any external ligand. GVL is a fully degradable, non-toxic green solvent and has complex ability to iron halide complexes through –OCO- group. GVL as the solvent and the ligand for AGET ATRP of MMA in a controlled manner, as proved by kinetic study, the low PDI values and the increase in polymer molecular weight versus monomer conversion. Chain re-initiation experiments and 1HNMR characterization were conducted to further confirm the living feature.
Highlights
IntroductionAbila–AsmicrnitonagbOTouoinsadsRtnCdliednte(aPOyhrdIucdt,aIa-oiuc.Icostpf)gtlGth-naeMorc:cVedorolaeMauLImwttxlnraopoAipepls.wsfyieltiugGoazenhrhrilVexPifmvtastduDhLeacevlenbIlaponeryAtisnavrl,tciGsdspatttouwrhyelEeanousgerTantlf,erolismsdsearoγimdAdoar-1laHovavTnpmntaebnRNophdnlalPmleehMenitre,talenoahRidnlrwvnleieaodicrcdinac,nhteioshgtnat-anocpaKCLhtoscrfoovngnelaeereuapaxemreetiadycterlrisraittcowspFegsues2(AivnalgGearoi4oreedni,ernnVxrzdeibsy.ecAdda.enLeoanabtss)C∗nlfi,styovpe:oothioehsextoronkLaaoesfntrliAenieyolnwntdfvoaG:rbmuoenieenf1irEgatrnooeraei7ahTgecrrVt--lBerold3.nd7sdaaflfpklipa,niiroaybtiggeolai1ntrnienvuaat5etimzeentrhenndnnAaIh,tnldendditdob2ettcillissariop1riselisaniraoenainmtdsolsoennchFonifVeste-ddaoofybs-na,ufgmmlupsatlt(dieioool6niwsmeedecmwne)oetdaten.dapfoabaillcolatllleroreicttiicramctesermeaaaosoontdnmdtn,annaasatubd-tAfeti-plbernnrmiyverToisorasdsieexRqcelstsdotcl,sodePouteultnosmdiideomrgaesairVcpatynlnaapceofsnas,ddgia-odmtntpddeevtliAatybsaumapataAlTmoihnclcayilTseRneiahtsleRtxamPtv(yrpsog7P.oeswroa)ePvfob.dnr(siechpwe5etHudarho)meeolh.tosrneafFaiawpinHrtrlwcieleyohvenwoohatiniovwswidrcticeraohttehuerihconle,vtvassyotfmie-yldstxtbirrsyeudge,einoatcsnreeaedsnittienmttheetottaaeydddaooxet,,lnpoesigiteivnebadsiims efo Keywords: green solvent; AGET ATRP; merization; γ-valerolactone; ligand iAlrivr,eiAndg∗urciasidbsilaceiadtlrpitdooilbay-geosnetliahlmfle-difetauexsdaphleiinwonsnhis.voeeSmnuoeecrvhteaoraxetiaphcsaepirsrreuoicbsehlxceiamaslstslse,bdatihonaelosaLgeueiltcoioagnmlaanmroddrasptpehharaiiisvarmel(ss.beoeFefeont[rh13e, De nition 1 endomorph swaps A and A∗
We found that no polymer was formed with only γ-valerolactone, FeBr3 deactivator and sodium ascorbate after 72 h reaction time
The typical polymerization was performed at 75°C under the ratio [MMA]:[EBPA]:[FeBr3]:[AsAc-Na]= 200:1:0.5:1 (EBPA:ethyl 2-bromo-2-phenylacetate, AsAc-Na: sodium ascorbate), VMMA/Vsolvent = 3 mL/1.5 mL, in the absence of any external ligand
Summary
Abila–AsmicrnitonagbOTouoinsadsRtnCdliednte(aPOyhrdIucdt,aIa-oiuc.Icostpf)gtlGth-naeMorc:cVedorolaeMauLImwttxlnraopoAipepls.wsfyieltiugGoazenhrhrilVexPifmvtastduDhLeacevlenbIlaponeryAtisnavrl,tciGsdspatttouwrhyelEeanousgerTantlf,erolismsdsearoγimdAdoar-1laHovavTnpmntaebnRNophdnlalPmleehMenitre,talenoahRidnlrwvnleieaodicrcdinac,nhteioshgtnat-anocpaKCLhtoscrfoovngnelaeereuapaxemreetiadycterlrisraittcowspFegsues2(AivnalgGearoi4oreedni,ernnVxrzdeibsy.ecAdda.enLeoanabtss)C∗nlfi,styovpe:oothioehsextoronkLaaoesfntrliAenieyolnwntdfvoaG:rbmuoenieenf1irEgatrnooeraei7ahTgecrrVt--lBerold3.nd7sdaaflfpklipa,niiroaybtiggeolai1ntrnienvuaat5etimzeentrhenndnnAaIh,tnldendditdob2ettcillissariop1riselisaniraoenainmtdsolsoennchFonifVeste-ddaoofybs-na,ufgmmlupsatlt(dieioool6niwsmeedecmwne)oetdaten.dapfoabaillcolatllleroreicttiicramctesermeaaaosoontdnmdtn,annaasatubd-tAfeti-plbernnrmiyverToisorasdsieexRqcelstsdotcl,sodePouteultnosmdiideomrgaesairVcpatynlnaapceofsnas,ddgia-odmtntpddeevtliAatybsaumapataAlTmoihnclcayilTseRneiahtsleRtxamPtv(yrpsog7P.oeswroa)ePvfob.dnr(siechpwe5etHudarho)meeolh.tosrneafFaiawpinHrtrlwcieleyohvenwoohatiniovwswidrcticeraohttehuerihconle,vtvassyotfmie-yldstxtbirrsyeudge,einoatcsnreeaedsnittienmttheetottaaeydddaooxet,,lnpoesigiteivnebadsiims efo Keywords: green solvent; AGET ATRP; merization; γ-valerolactone; ligand iAlrivr,eiAndg∗urciasidbsilaceiadtlrpitdooilbay-geosnetliahlmfle-difetauexsdaphleiinwonsnhis.voeeSmnuoeecrvhteaoraxetiaphcsaepirsrreuoicbsehlxceiamaslstslse,bdatihonaelosaLgeueiltcoioagnmlaanmroddrasptpehharaiiisvarmel(ss.beoeFefeont[rh13e, De nition 1 endomorph swaps A and A∗.
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