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1、ProgressinOrganicCoatings50(2004)263268SynthesisofacrylicpolymernetworksbyelectroinitiatedpolymerizationC.Deckera,∗,R.Vatajb,A.LouatibaDépartementdePhotochimieGénérale(CNRS-UMRNo.7525),3rueWerner,Mulhouse68200,FrancebLaboratoired’ElectrochimieAnalytique,EcoleN
2、ationaleSupérieuredeChimiedeMulhouse,UniversitédeHaute-Alsace,3rueWerner,Mulhouse68200,FranceReceived24February2004;accepted6March2004AbstractApolyurethaneoligomerbearingacrylateendgroupshasbeencross-linkedatambienttemperaturebyelectroinitiatedpolymerization.T
3、heinitiator-freewater-basedresinwascoatedontoametallicplateservingascathodebyelectrodepositionordrying,onlyitstipbeingdippedintotheelectrolyte.Thecuringofthecoatingincontactwithairwasfollowedbyinfraredspectroscopyandfoundtoproceedefficientlybyapplyinga100mAcurr
4、ent,withformationofahardandinsolublepolymer.ElectroinitiatedpolymerizationcanbeassociatedtophotoinitiatedpolymerizationtoensureaneffectivecuringofshadowedareasontridimensionalobjectsprotectedbyUV-curedcoatings.©2004ElsevierB.V.Allrightsreserved.Keywords:Electr
5、opolymerization;Curing;Acrylates;Water-basedcoatings1.Introductionsueoftheunder-curinginshadowedareasofacrylate-basedUV-curableautomotivevarnishes.IncontrasttopreviousElectroinitiatedpolymerization(EP)isanunusualwayEPstudies,thepolymerizationwasnotcarriedoutin
6、atosynthesizepolymersbyelectrolysisofmonomersolu-monomersolution,butonasolidpolymerfilmwhichwastions[1].Thistechnologyhasbecomemoreattractivewithtobecross-linked.Theacrylatefunctionalizedtelechelicthedevelopmentofconductingpolymerslikepolypyrrole,oligomerwasfirs
7、tcoatedontoametallicsupportservingorpolythiophene,whichcanbedepositedattheworkingaselectrodebyelectrodepositionfromanaqueousdisper-electrodeasfilmsofcontrolledthickness[24].Althoughsion[17,18],andthencross-linkedbyelectroinitiatedpoly-thisprocesswasoriginallyde
8、velopedinacrylicmonomersmerizationtomakeitchemicallyresistantandimproveits[59],onlyscantattentionhasbeendirectedtowardsthemechanicalproperties(hardnessandscratchresistance).Wesynth
