Copolymerization of dodecyl methacrylate with oxyethylene glycol
Transkrypt
Copolymerization of dodecyl methacrylate with oxyethylene glycol
ELżBETAsocH^,!l{A ANDRZE]EWSKA], MACIE'Ar,jDRŻE'EwsKI, MARrIJszB RocAcKLKATARZ'/NABlELlcKĄ-DAsŻKIEl{lcz wydŻial TehnÓl%ii cheni.znej Pl M sklodowskje] c!li. 2, ó0 965 Poznali Poland Copolymerization of dodecyl methacrylate with oxyethylene glycol dimethaCrylales: det€rmination of r€activity Iatioś RAPID COMMUNICATION _ Thc work prcsc|ts ihe rcŃlh ol dctemil lon of rGrctjvii-v rłiiG lol vnryl/dlllnyl syścńs ba*d otr dodeĆyl ńcthacyl'h ind lour oxyethylcnc 8lyco] dmcthrcylates vaiiÓus nethods (bmcd on tcninil model an.l pcNliinmrc clf.c0 rrcrc uscJ ror cilculiiion or everin.rtal rc. śulb' The evelimeŃl dab wcm obtiincd by gas chrcmatography (debrni. re leed) and by NMR ańaly5i5 of lh. Ś) lublc oPÓly ń ei n wal IÓ! nd that d im€thi yla tes wei! Pre{ctntia ll' bu ili inio thc.opolyń.r chanr Th$c tsth! wd! i'18q,d agrRmcnt with qu r summrry m{mhł|i.ól cilculańoN based sho {hłinoli8omcE Key words:.oPolyneńz.iion,,lErcthad]rlaE5, liry ntios, ternina I n odcl, pcnul t fu nonom.t]F.r]'lates' r.ach' Polyńeliztion oI m ]iifuldionłl nronom8s l.ads lo thc Iornatfun of hislrly doŚli .d insolL'ble plo. du ds Thc rcsu ldng Pol]rńel nd\'ork k ]] dło8.rco u s ndwolk duc to mio%cl forEatjon. Thc dcfuit-v ń 'hÓ .an be r%ulałed by łn addtion ol ń no|Ji'rc..currently'ihercn ]inearmcthodsarc.ś-o[ ncn,lc,l t3]' Althou8h a8reat num lolcdiodetermiń,tiÓnof!Ćadjviryrariojij1mlioussys t.ns, o )' a lim .d nuńbgoftl1e v i''yl /d iviń],l sr,ścnś lł_6l Dedeas.ińa.tdsliŃingde$itJ,.llows torci.hhlghcr Thc aE oJ thń work Nas to dctrnrim thcrcichvjry .oNetion of d oubl. bo nds ańd tÓ Rt ce ihe polvn di nhGofdodP.ylndha.rylaieandlouox}'ethylencgly. złiion shri .gc' How.vcł r.dudńń ol dÓŚlilkiĘ .o1dineihaĆl}'laE\' differ ]! i'l oiyethyl.nP Rgmens' dcngq by oFolyńcńzdd o ń With ńon vinyl monomł len8ihs, Ni'B la!ńUs cal.ulatioń ..n lerd to .n inoełsc i]r hchrc8cńcit-v due tlj a .ÓmFo 3l9 rh. prefelcn.cs o' thc lndjvjd sitionil d fra$o.iitd wth dift.rc mononers' The nom hetcrolcnm Polyner .halńs wTc cshmatcd by q moie likelt, it will sltow a signili.inily rvcikcr sEudur. .rlculations, bascd on thc ulysno iń some roRions, potonti ly causing lI.natur fiilurcs ofshort(halnoligomPN. lr1. ThUs, rh. knÓvled8e of thc l.adivity ratios fol ńÓnovinyl/divin],l sy*rms is vely ihe fiMl FfuducrPn,PeńjEs. Iati6, ill oI thcm bascd oń N'ay(E aiiÓno1rtadili9 M .lials cIaŚin.dłsdiffcrcntił1orint.Eraloncsl2]Th.codc sPondiĘ eqlatioN and soluiiol methods ire '.''' .'' '_'ar' '''" ^' linc or _ _ dode.J'l mdtaclylatc (DD]V'' .thyl.ne 8l!d,ldińĆthaĆrylab (EGDM), di(ethylen€ glyĆÓl) dimetha.iylab (DEGDM), id' hy'n"3J'''l)d'ń''}ł'yl .'T'f.DM' fioń Aldńch conPany .oluńn .hrcmato€nPhy bcfore usc. wele Pllchased and Pu fi.d by 2'2_Dinethoxy.2_Pheny1ac.thoph€ iniiiad of .oPolynł'atiÓn was delivłed by ciba sPe coPÓlyn.!Śyllh.śigand ledin8 il T!bl.l'nq('ilyolb!dDDv ar40 oc wiih !h.365 nń light of 1 mw/cm':iŃeEiĘ rhc rrcscn.e oI 2,2.dimcthoxy.2-phenylaretophenon. For E.s chrcnar%rrphy investiSaiions, 10 Pl6 wclc irradiai€d for a line ne ng sam convcrsion ol double bonds (as e*isaied by Dsc melho'l) and łlkr irradiaiion immediaely ke ed by .hlororon b exiiact rhe unreactu lubl. polymer was pre.ipibred usinE methanor and un lea.led hÓnonss włe analyżed by cc iń lhe iitbat.' In the Ćase o{NMR jnvesh8atjoń,0533amPl6 wcrc Polyń*izcd to .onycEion iko śwt' l' łnd lhe solub]e Thc ractivity raiios were eslimaied Using PtocÓP conPulm pD€rłm l2]' Two nelho modcl, Kclcn-Tiidos (KT, lin.at (TM, nonlin.ar), and a meihod taking inroa@rnrpe nuhimai.er{t (PIM) w.r. Lsod. The Pbbabiljly o' fońation of short oligomcri. .o. polyńd .haiN' dif'łing ilr the nunber and lhe position of Mo lyPś of monomer Uni6, wa basis ol geomeĘ' ÓPtihizatiÓń, whi.h eńabkd calolaiion o1the PłĆtiÓn ĆńthalPy (M') troń rhc followin! Ń'=4''(!Hłl r4) sh{c,t-ttrtuaru irs.N',-tE ofh nti\rof llka u'^H'-lwlafln kr0fIhliI ninl 1ł. 0) uL crlcuIations lvere perfoth€d bv semi€mpti.al ńcihod PM3 uing HyPerch€m 7 0 .omPufur Pro8ran' The lower value' the ńÓĘ Probabh n thc olisomcl ^'' stu.fure Ćofuistińg ol a givcn numbs of uniis' DD}'l lFornlla (l)] lvas .oPo|rnelizd wiiń four di. methadylabs lrormlla (lI)1. |ł o Thccal.ulied nonomerr&Ćtivily In ałnNi all Ćas6 (one $ePtion: Ł dcc b r ob. tained by TM method Itr DDM/DEGDM syścm) Ą va- ru* aft h,Eher rhan I and r 3ugE6hn3 hj8het adivity ofdivin}l ńonońcrs iddcd b ihc.opolynd.hain Thn in turn ndicarcs that ihc Polymcr formed at rhc bcginnin! o' thc rci.hon will b€ more denśoly oGsIinkcd dmn tha work rhe frd thai onc of rhe rwo . (rlis łPPrÓad1 6D.Iihough some works łppEłrrd, Unt is mote PoPular t5' j'1 which monomer funĆtionaliry h inbodu.cdioih.eiprssiondsarbingrhcredivitynThc .omPosihon diasrłms of DDM/DEGDM anLr DDIVI/TEGDM systcms e ples€ned in Fi8' ] and Ł respedivcly ThP fitud ruv* SLBB rain.d ro! DDM/TEGDM sysr.m land DDM/TIECDNI, iot shown here) aĘ hetld deKlib.d by PTM modcl (tak_ jry'nioaccount$arUńlb beforc thclł*oncniyłIfel lhc rc&tiviiy of .hain !adi.al)' whcrcłs ń th. oŚc of ' tuo sho .r dimerhadtrars thc both modcls, i. ulii(a$uńin8 male orc that th. rełdivity oI thc proFag in8 sFe.ics śdepend€ni only on d lh. .nd ol thc chain) and PTM 8iva very Śińil.r The lcsulis of ĆalĆdatn,ń5 of r DDM/TIEGDM syslem łr. gjven j r$Uls 2 ś ..l ! Fą' 1. copal9nt nńposłan l| uEA anno - ftźn nnPosłllu (F) Fl DDM|DEGDM s! ta| dala ftafi sft tba|nalayaph!, żtpernnłłaldaIa ^ 7.7adł thaĘ,ical ćufl6 NMR, LinćŚ ąkllabl froh fldn rfulbily ńliń Ł łnahd fu Nr l1) nnd rM @ fulh^ls lnd naii.allyshoM in Fis.3 Thi.k lins indi.aic ihc prcIeleŁ reńtia] addition of the .ononomer io ihe .oPol)'mel '._/: ńinal !ńn' The resulb show &at i values ar lowel lor th€ additirn ofdinethadylatethan rhosc lo. DDM, indePenden y on t Unit in the.opolyńer ĆhaiĄ whiĆ to' Thus' tne Euhs oi thŃrtia Bood aBreem.nr wi th ih ose obtai ne,l dn{ y 6on r?ac tivily tńG ddłminations Ę o.+ : /{C{NOIłT,'DCMENTS E$.2. copr]|]'"t frfrpaŚłbn łJ) u6nŚ ńdlńł fkd dnp6ili.ń (F) |dl DDMITEGDM s!3lfn1l da1rldlibas 6 n1 Tht @,kuŚ ŚuPPa .d |ol sci.nlifu R1 dth ilpq, b! Pd5ł skk nsań prck l no. 4 mgB crnłłt a13 2z). 1' YÓuĘ J s, 2. 'Y *,/ *B Fl{' 3 P65;blc ': +^/ .-,/\u @.lb af ,A/ 38 Mdldnll ńd; lc lh prłtrulful addłiln o| ,ht palwł kniral ,nł, A B furck "rd xannurpati A' R. Nndrfr Ól ctan Phvs. 1993' 199, la4] Hi8iÓpÓl c: ''coPo1ym.ńz io! łic Approa.Ii,' X]us.r AGdemiĆ/Plenub P!bl' .+s 3. MonetD, $^.r 4. MeodezJ., AbrżhaF RomanJ s. T]ieĄ AndYcjewska^łnm'idJ. E ; P',ł'l' ' 19ł' ó. Ajzenbcrg N', RiÓrd A ; l' Appl P żddłinrc' Thkt lnles mol\nł b lhe a ł s'ł' 2002,5' 4 55 '9. r,I. Mmmrioi.d,rs PPmNA:n]'y,ul