Oligolactate-Grafte dDextra nHydrogels :Detectio nof Stereocomple xCrosslink sb yX-ra yDiffraction

Physicall ycrosslinke dhydrogel sar eformed upo nmixin gequa lamount so faqueou ssolution so fdextran grafte dwit hl-lacti caci doligomer san ddextra ngrafted wit hd-lacti caci doligomers .I nthi spaper ,th edex-lactate hydrogel sar eanalyze db yX-ra ydiffractio nt oprovid eevi- denc etha thydroge lformatio noccurre dthroug hstereocom- ple xformation .First ,th estereocomple xformatio no fmono- dispers elacti caci doligomer swa sstudie dan dcomparison wit hpublishe dresult so fpoly(lacti cacid )wa smade .I twas clearl ydemonstrate dtha tstereocomplexe swer eforme dbe- twee noligomer so fopposit echirality .Th edat afo rthese monodispers elacti caci doligomer swer euse dt ointerpret th eresult sobtaine dwit hth edex-lactat ehydrogels .X-ray diffractio nmeasurement sdemonstrate dtha ti nth ehydro- gel sstereocomplexe swer eforme dbetwee nth elacti cacid oligomer so fopposit echirality . ©200 2Wile yPeriodicals ,Inc. JApp lPoly mSc i86 :28 9-293 ,2002