 process using a free radical initiator and transition metal chelate complex. Such a process is disclosed in, for example, U.S. Pat. No. 5,721,330. Preferred acid containing monomers used to form the acid containing macromonomer are xcex1-methyl vinyl monomers such as methacrylic acid.
In another preferred embodiment of the present invention, a xe2x80x9cmacromolecular organic compoundxe2x80x9d having a hydrophobic cavity is present in the polymerization medium used to form the macromonomer and/or aqueous copolymer composition. Preferably, the macromolecular organic compound is used when copolymerizing ethylenically unsaturated monomers with very low water solubility such as lauryl or stearyl acrylates and/or methacrylates. By xe2x80x9cvery low water solubilityxe2x80x9d it is meant a water solubility at 25xc2x0 C. to 50xc2x0 C. of no greater than 50 millimoles/liter. For example, the macromolecular organic compound may be added to the monomer composition, the macromonomer aqueous emulsion, or the polymerization reaction mixture used to form the aqueous copolymer composition. Also, for example, the macromolecular organic compound may be added to an aqueous emulsion of ethylenically unsaturated monomer used to form the macromonomer. Suitable techniques for using a macromolecular organic compound having a hydrophobic cavity are disclosed in, for example, U.S. Pat. No. 5,521,266.
Preferably, the macromolecular organic compound having a hydrophobic cavity is added to the polymerization reaction mixture to provide a molar ratio of macromolecular organic compound to very low water solubility monomer or macromonomer of from 5:1 to 1:5000 and more preferably from 1:1 to 1:500.
Macromolecular organic compounds having a hydrophobic cavity useful in the present invention include for example cyclodextrin or cyclodextrin derivatives; cyclic oligosaccharides having a hydrophobic cavity such as cycloinulohexose, cycloinuloheptose, or cycloinuloctose; calyxarenes; cavitands; or combinations thereof. Preferably, the macromolecular organic compound is xcex2-cyclodextrin, more preferably methyl-xcex2-cyclodextrin.
Monomers having low water solubility include for example primary alkenes; styrene and alkylsubstituted styrene; xcex1-methyl styrene; vinyltol
process using a free radical instigator and passage metal chelate complex. Such a procedure is disclose in, for example, U.S. Pat. No. 5,721,330. favored acid contain monomers use to form the acid containing macromonomer are xcex1 - methyl vinyl monomer such as methacrylic acid. 
 In another preferred embodiment of the present invention, a xe2x80x9cmacromolecular organic compoundxe2x80x9d having a hydrophobic pit is present in the polymerization medium used to imprint the macromonomer and/or aqueous copolymer composition. Preferably, the macromolecular organic compound is use when copolymerizing ethylenically unsaturated monomers with very low urine solubility such as lauryl or stearyl acrylates and/or methacrylates. By xe2x80x9cvery low body of water solubilityxe2x80x9d it is meant a water solubility at 25xc2x0 C. to 50xc2x0 C. of no greater than 50 millimoles / liter. For example, the macromolecular constituent compound may be added to the monomer composition, the macromonomer aqueous emulsion, or the polymerization reaction mixture used to form the aqueous copolymer writing. besides, for example, the macromolecular organic compound may be added to an aqueous emulsion of ethylenically unsaturated monomer used to form the macromonomer. Suitable techniques for practice a macromolecular constituent compound having a hydrophobic cavity are disclose in, for case, U.S. Pat. No. 5,521,266. 
 Preferably, the macromolecular organic compound having a hydrophobic pit is added to the polymerization chemical reaction mixture to provide a molar ratio of macromolecular constituent compound to very low water solubility monomer or macromonomer of from 5:1 to 1:5000 and more preferably from 1:1 to 1:500. 
 Macromolecular organic compounds having a hydrophobic pit useful in the present invention include for example cyclodextrin or cyclodextrin derivatives; cyclic oligosaccharides having a hydrophobic cavity such as cycloinulohexose, cycloinuloheptose, or cycloinuloctose; calyxarenes; cavitands; or combinations thereof. Preferably, the macromolecular constituent compound is xcex2 - cyclodextrin, more preferably methyl - xcex2 - cyclodextrin. 
 monomer have low water solubility admit for example primary alkenes; styrene and alkylsubstituted styrene; xcex1 - methyl styrene; vinyltol
 prlcess using a free radicxl initiator anb transmtion mstal cheuate complex. Such a process ms dusclowed in, for example, U.S. Oat. No. 5,721,330. Pgeferred qcid xontaining monomers used bo foxm the acid contsining macsomonomer are fcdx1-lethyl vinyl monomers such as methasrylic scld.
In another ptefergeq emgodiment of the present invention, z xe2x80x9ckacromoleculat organic compoundxe2x80x9d haging a hydrophobic cavlty is presght yb the polymefization mtdnum used to form the macromonomer and/or aqjeous copolymer cimplvition. Prefxrably, the macromolecular mrganic compound is uxed whwn copolymerizing ethblenically unsaturatgd monomerv cith very low water silybilijy suwh ar lajrym pr stearjl ecrylates ahd/or methaceylates. By xe2x80x9cveru jiw water solugilityve2v80x9d it is meant a water solubility at 25xb2x0 C. to 50xc2x0 C. of no greater than 50 millimoles/litet. For exam[le, the macromolecular organic compound may be adged tk tht nonomde fomposition, the macromonomer aqueous emulsion, kr tme polymerizatiok reaction mixture udec to form the xqueous ckpolymer compositiln. Also, for wxample, tre mscromolecular organic compoynd may be abdee to an aqueous emblsion of etkylenivally unsaturated monomer uszd to rorm the mafromonomed. Suitable techniduex xor using a macromolecular organic rompobnd havivg a hydro[hobic cavlty ava disclosed in, for examkle, U.S. Pat. No. 5,521,266.
Prfferably, the macromolecular orgeiic compound naeinc a hydrjphoblc cavity is adqed to the polimerizatijn rexction mixnure to pcovide a molwr ratio of mdfromolecular organic compoune to vefh low water sokubility monomer or macromonomer of fvom 5:1 jo 1:5000 and more prefzxavly from 1:1 to 1:500.
Mavrooolqcllac orgwtic compoundv haxine a hyarophobic ccvkty iseful in the presend inbention include fot cxample ciclodextryn or cyclodectrin derivatives; fyclir oligusaccnarydes having a hydrophobic cavify such ad cncloinulohexofe, cncloynuloheptoxe, or cycloinuloctose; calyxarenes; cavitends; or combinations thwreof. Preferably, thg mscromoleculer orgwnic compmund is xcex2-cyclodexrrin, more preferanly methyl-xcex2-cyclodexfrin.
Motomerd having low water solubility include for example primary alkenes; styrene and alkylsubstitufed xtyrete; rcex1-metryl dvyrene; vinyltol
process using a free radical initiator and chelate Such a is disclosed in, 5,721,330. acid containing monomers to form the containing macromonomer are xcex1-methyl vinyl monomers as methacrylic acid. In another preferred embodiment of the present invention, a xe2x80x9cmacromolecular compoundxe2x80x9d having a hydrophobic cavity is present in the polymerization medium used to the and/or copolymer Preferably, the macromolecular organic compound is used when copolymerizing ethylenically unsaturated monomers with very low water such as lauryl or stearyl acrylates and/or methacrylates. xe2x80x9cvery low water solubilityxe2x80x9d is meant a water solubility 25xc2x0 to 50xc2x0 of greater 50 millimoles/liter. For the macromolecular organic compound may be added to the monomer composition, the macromonomer aqueous emulsion, or the reaction mixture form the copolymer Also, example, the macromolecular may be added to an aqueous unsaturated monomer used to form the macromonomer. Suitable for using macromolecular organic compound having a hydrophobic are disclosed in, for example, U.S. Pat. No. Preferably, the macromolecular organic compound having a hydrophobic cavity is added to the polymerization reaction provide a molar ratio macromolecular organic compound very water monomer macromonomer of 5:1 to 1:5000 and more preferably from 1:1 to 1:500. Macromolecular compounds having a hydrophobic cavity useful in the present invention example or cyclodextrin derivatives; oligosaccharides having a hydrophobic such cycloinulohexose, cycloinuloheptose, or cycloinuloctose; or thereof. organic is more preferably methyl-xcex2-cyclodextrin. Monomers low water solubility include for primary alkenes; styrene and
 process using a free radical iNitiator anD tranSitIon MeTal cHelaTe complex. Such a PRoceSs is disclosed in, for examPle, U.S. paT. no. 5,721,330. PrEFeRred aCid contAInING moNoMeRs uSeD To Form tHe aCid contAining macrOmoNoMer are xcex1-meTHyL vinyl monoMerS such as methaCryLic aciD.
IN anOTher pRefErred EmbodiMEnt of tHe present InVEntion, A Xe2x80x9cmaCROmOlecUlar organic compouNDxE2X80x9d having a hydrOphobiC cAViTY Is pResEnt in the poLyMerizATion medIUm USED to FOrm the macromoNomer and/or aQUeoUs copoLyMer COmposiTion. PReFEraBly, the macroMoleCular orgaNic comPOund is uSEd when cOpolymEriZinG ethYLeNiCalLy UNsaTUrAteD MonOmers witH vErY low wAter SOLUBiliTy sUch aS laurYl or stearyl acRylAtes ANd/oR methAcrylAtes. by Xe2x80x9cVery loW wateR sOlubilityxe2x80x9d iT is mEant a wateR soLuBilItY at 25xc2X0 c. to 50xc2x0 c. of No gReater tHan 50 millIMolEs/LITEr. for example, the macroMoLECuLar organIc compOUnD mAY be added To The MonoMER compOsitIOn, The macroMonomeR AqUeOus emulSiOn, or thE pOlyMerIzatiON reaCtion mIxture usEd to fORm the aqueous coPOlymer composiTIoN. aLsO, For eXamPle, the macroMoleCUlar OrgaNIc ComPOund mAy be aDdED tO An aqueous emulsion of EtHyleniCally Unsaturated moNomer used tO FORm the macRomoNOmER. Suitable technIques For using a mACromolecUlar oRganic coMpound havING a hydropHobIc cAviTy aRE DiSclosed in, for eXAMple, u.S. pat. No. 5,521,266.
PrEfeRably, thE maCroMolEcuLaR organic cOmpound hAvInG a HyDroPhobiC Cavity is AdDed To The PolymERizatiOn reaCtioN mIxTUre To proviDE a MOLar rAtIo Of maCroMoLeculAr orGAniC compouNd to very lOw wATer sOlUbIlity moNomer or macromOnOmer of from 5:1 To 1:5000 And More prEFErably frOm 1:1 to 1:500.
Macromolecular organIC compouNds HavinG a hyDrophobic CavIty useFul IN the prEsent iNventIoN inCLUde foR EXaMplE cYclodextriN OR cyClodeXtRin dErivatiVes; cyclic oligosaccHAriDes having a hydRopHobiC CAvIty SUcH As cYcLOinULOhexose, cycloinuLoheptose, oR cYClOinuloctosE; CalYxArenes; cAvitandS; or coMBinatioNs thereof. preferablY, tHe maCROmoLecular orgAnic compOund is xceX2-CycloDExTrin, mOre PreferAbLy mEthyl-Xcex2-cyCLodExtriN.
MonomErS havinG low wAtEr solubiLity include for example prImary aLkeneS; stYrene and aLkyLSubStituted sTyreNe; xcex1-methYl sTyrEne; viNylTOl
 process using a free radi cal initia tor a ndtra ns itio n me tal chelate co m plex . Such a process is di sclos ed in,f or  exam ple, U. S .P a t.No .5,7 21 , 33 0. Pr efe rred ac id contain ing  m onomers used to  form theaci d containing  ma cromon om era re xc ex1 -meth yl vin y l mono mers such  a s  metha c rylic a c i d. 
Inanother preferred em b odiment of the  prese nt in v e nti on,  a xe2x80x 9c macro m olecula r  o r g a nic compoundxe2x8 0x9d having a h ydroph ob icc avityis pr es e ntin the poly meri zation me dium u s ed to f o rm themacrom ono mer  and / or  a que ou s  co p ol yme r  co mpositio n.  P refer ably , t h e ma cro mole cular  organic comp oun d is use d whe n cop olym er izing  ethyl enica ll y unsaturated m onom ers withver ylow  w aters olubil ity  su ch as l auryl o r  st ea r y l  a crylates and/or me th a c ry lates. B y xe2x 8 0x 9c v ery lowwa ter  sol u b ility xe2x 8 0x 9d it is  meant awa ter sol ub ilityat  25 xc2 x0 C. to 5 0xc2x0  C. of n o gre a ter than 50 mi l limoles/liter .  F o r  e x ampl e,the macromo lecu l ar o rgan i ccom p oundmay b ea dd e d to the monomer co mp ositio n, th e macromonome r aqueouse m u lsion, o r th e  p o lymerization r eacti on mixture used toformthe aque ous copol y m er compo sit ion . A lso , fo r example, th e macr om olecula r o rganiccom pou ndmay  b e added t o an aqu eo us  e mu lsi on of ethyleni ca lly  u nsa turat e d mono mer u sedto  f o rmthe mac r om o n omer .Su itab lete chniq uesf orusing a  macromol ecu l ar o rg an ic comp ound having a  h ydrophobic  c avi ty are d isclosed  in, for example, U.S.P at. No.  5, 521,2 66.Preferabl y,the ma cro m olecul ar org anicco mpo u n d hav i n ga h yd rophobic c a v ity  is a dd ed t o the p olymerization reac t ion  mixture to p rov idea mo lar ra t ioof mac r o molecular organ ic compoun dt overy low w a ter  s olubili ty mono mer o r  macrom onomer of  from 5:1  t o 1: 5 0 00and more p referabl y from 1: 1  to 1 : 50 0.
Ma cro molecu la r o rgani c comp o und s hav ing ahy dropho bic c av ity usef ul in the present inven tion i nclud e f or exampl e c y clo dextrin o r cy clodextrin  de riv ative s;c yclic  oli g os acc h aride s ha v ing a hyd r op hob i c  c avity sucha s cyc loinu loh e xose,cycl oinuloheptose, or cycloinuloctos e; c a l yxa ren e s; c av itands; or com bin at i o ns there of . Preferabl y, the m ac r omole cularorgani c compo u n di s xcex 2-cy clo dextrin,mor ep referab ly  m e thyl-x cex2 -c yclode xtrin. Mono m e rs having low wa ter s o l ubili t y i nclud efor exa m pleprimary al kenes; styr ene an d al kylsu bstitut ed  styre ne;  x cex1-methy l  styrene;  viny ltol
 process_using a_free radical initiator and_transition metal_chelate_complex. Such_a_process is disclosed_in, for example,_U.S. Pat. No. 5,721,330._Preferred acid containing_monomers_used to form the acid containing macromonomer are xcex1-methyl vinyl monomers such as methacrylic_acid.
In_another preferred_embodiment_of_the present invention, a xe2x80x9cmacromolecular_organic compoundxe2x80x9d having a hydrophobic_cavity is_present in the polymerization medium used to form_the_macromonomer and/or aqueous_copolymer composition. Preferably, the macromolecular organic compound is used_when copolymerizing ethylenically unsaturated monomers with_very low water_solubility_such_as lauryl or stearyl_acrylates and/or methacrylates. By xe2x80x9cvery low_water solubilityxe2x80x9d it is meant a_water solubility at 25xc2x0 C. to 50xc2x0_C. of no greater than 50_millimoles/liter. For example, the macromolecular_organic compound_may be added to the_monomer composition, the_macromonomer aqueous_emulsion, or the_polymerization reaction mixture used to form_the aqueous copolymer_composition. Also, for example, the macromolecular_organic_compound may be_added_to_an aqueous_emulsion of ethylenically_unsaturated_monomer used_to_form the macromonomer. Suitable techniques for_using_a macromolecular organic compound having a hydrophobic_cavity are disclosed in,_for_example, U.S. Pat. No._5,521,266.
Preferably, the macromolecular organic compound_having a hydrophobic cavity is added_to the_polymerization reaction_mixture to provide a molar ratio of macromolecular organic compound to_very low water solubility monomer or_macromonomer of from 5:1_to 1:5000_and_more preferably from_1:1_to 1:500.
Macromolecular_organic compounds having a hydrophobic cavity useful_in the_present invention include for example cyclodextrin_or cyclodextrin derivatives; cyclic_oligosaccharides_having a hydrophobic cavity such as_cycloinulohexose, cycloinuloheptose, or cycloinuloctose; calyxarenes; cavitands;_or combinations thereof. Preferably, the_macromolecular_organic_compound is xcex2-cyclodextrin, more preferably_methyl-xcex2-cyclodextrin.
Monomers having low water solubility include_for example primary_alkenes; styrene and alkylsubstituted styrene; xcex1-methyl styrene;_vinyltol