01588nas a2200217   4500008004100000022001400041245008100055210006900136260008600205300001800291490000700309520076700316653002701083653002901110653001701139100002601156700002501182700002301207700003001230856011001260       2009                        eng d  a1060-132500aSynthesis of hydroxy-functional PMMA macromonomers by anionic polymerization0 aSynthesis of hydroxyfunctional PMMA macromonomers by anionic pol  a325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USAbTAYLOR & FRANCIS INCcSEP  aPII 9144946340 v463 a<p>Living anionic polymerization has been utilized to synthesize hydroxy end-functionalized PMMA macromonomers with styryl or allyl functionalities as the polymerizable end-groups. 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 terminated using 4-vinylbenzyl chloride (4-VBC) or allyl methacrylate (ALMA) to form -hydroxy–styryl and -hydroxy–allyl PMMA, respectively. These protected hydroxy-functionalized PMMA macromonomers have been characterized by GPC and 1H-NMR. Termination using 4-VBC led to 50% functionalization, whereas that using allyl methacrylate led to 100% functionalization of the hydroxy-PMMA.</p>10aAnionic polymerization10afunctionalized initiator10aMacromonomer1 aDhara, Mahua, Ganguly1 aSivaram, Swaminathan1 aBhonde, Ramesh, R.1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/synthesis-hydroxy-functional-pmma-macromonomers-anionic-polymerization01996nas a2200217   4500008004100000022001400041245012300055210006900178260006900247300001200316490000700328520115900335653003401494653001301528653001701541653002401558100002901582700001901611700001801630856013001648       2014                        eng d  a0300-944000aPhotopolymerization kinetics of bis-aromatic based urethane acrylate macromonomers in the presence of reactive diluent0 aPhotopolymerization kinetics of bisaromatic based urethane acryl  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcJAN  a225-2310 v773 a<p>The present work deals with the photopolymerization of bis-aromatic based urethane acrylate macromonomers in the presence of excess end capping agent as reactive diluent and estimation of their kinetic parameters. Formulations were made by independently homogenizing the macromonomers with photoinitiators of three different classes. Three different compositions of photoinitiators were used to study the effect of concentration of photoinitiator on cure kinetics. These compositions obtained were tested for photo curing performance using photo DSC under polychromatic radiation. The heat flows against time were recorded for all formulations under isothermal condition and the rates of polymerization, peak maximum times as well as the percentage conversions were estimated. It was observed that due to a longer timescale for reaction diffusion, formulations with macromonomer containing propoxylated backbone showed higher conversions than the corresponding ethoxylated analogue. The photopolymerization and kinetic estimations of the formulations including evaluation of kinetic model are discussed. (C) 2013 Elsevier B.V. All rights reserved.</p>10aBimolecular termination model10akinetics10aMacromonomer10aPhotopolymerization1 aHarikrishna, Reghunathan1 aPonrathnam, S.1 aRajan, C., R.  uhttps://library.ncl.res.in/content/photopolymerization-kinetics-bis-aromatic-based-urethane-acrylate-macromonomers-presence-0