01801nas a2200253   4500008004100000022001400041245011900055210006900174260006800243300001400311490000800325520084700333653002601180653003401206653001901240653001801259653003801277100002201315700002001337700002001357700002101377700001801398856013101416       2007                        eng d  a0021-899500aSynthesis and characterization of hindered amine light stabilizers based on end functionalization of polypropylene0 aSynthesis and characterization of hindered amine light stabilize  a111 RIVER ST, HOBOKEN, NJ 07030 USAbJOHN WILEY & SONS INCcMAY  a1596-16020 v1043 a<p>A polymeric hindered amine light stabilizer (HALS), where HALS moiety was attached at the terminal end of the polypropylene chain via end-functionalized vinylidine PP through simple organic reactions, was synthesized. It comprises the synthesis of vinylidine-terminated polypropylene by using Cp2ZrCl2/MAO as catalyst system and epoxidation of vinylidene polypropylene. The final product was synthesized by carrying out the reaction between epoxy end functionalized polypropylene and 4-amino-2,2,6,6-tetrametyl piperidine. The final product was characterized by using H-1 NMR, C-13 NMR, and FT-IR spectra. Functionality was calculated by using vapor phase osmometry and H-1 NMR. The solubility and diffusion coefficient of the product were calculated and also its stabilization performance was checked. (c) 2007 Wiley Periodicals, Inc.</p>10aend functionalization10afunctionalization of polymers10apolymeric HALS10apolypropylene10avinylidine and photostabilization1 aReddy, Raghunatha1 aKumar, Bijendra1 aRana, Sravendra1 aTevtia, Amit, K.1 aSingh, R., P.  uhttps://library.ncl.res.in/content/synthesis-and-characterization-hindered-amine-light-stabilizers-based-end-functionalization