01718nas a2200205   4500008004100000022001400041245008500055210006900140260005700209300001200266490000700278520096900285653002701254653001801281653002301299100002601322700002501348700002301373856011601396       2009                        eng d  a0170-083900aSynthesis of hydroxy-functionalized star-branched PMMA by anionic polymerization0 aSynthesis of hydroxyfunctionalized starbranched PMMA by anionic   a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcAUG  a185-1960 v633 a<p>Living anionic polymerization has been exploited to synthesize hydroxy end-functionalized PMMA star-branched polymers. Protected hydroxy-functionalized alkyl lithium initiators have been used to initiate anionic polymerization of MMA. Subsequently the living chains with protected hydroxyl function have been used to cross-link ethylene glycol dimethacrylate (EGDMA) in order to form star-branched polymers with cross-linked EGDMA core via `arm-first' method. The linear arms and the star molecules have been characterized by (1)HNMR, GPC, and light scattering. Variation in the number of arms with arm molecular weight and cross-linker loading has been studied. Star-branched PMMA-OH with as many as similar to 10 arms could be successfully made. Increased molecular weight of PMMA-OH led to decrease in the number of arms incorporated due to increased steric hindrance on the core. Increase in EGDMA concentration slightly increased the arm incorporation.</p>10aAnionic polymerization10aStar polymers10aStar-branched PMMA1 aDhara, Mahua, Ganguly1 aSivaram, Swaminathan1 aBaskaran, Durairaj  uhttps://library.ncl.res.in/content/synthesis-hydroxy-functionalized-star-branched-pmma-anionic-polymerization-0