Abstract
Chiral and achiral amine-functionalized norbornene monomers endo-/exo-N-(S)-(−)-α-methylbenzyl-5-norbornene-2,3-dicarboximide (endo-/exo-(S)-MBnNDI), endo-/exo-N-phenyl-5-norbornene-2,3-dicarboximide (endo-/exo-PhNDI) and endo-/exo-N-cyclohexyl-5-norbornene-2,3-dicarboximide (endo-/exo-CHNDI) were synthesized and polymerized using 1st Generation Grubbs Catalyst, and the chiroptical properties of these polymers were studied. Specific rotations of higher Mn poly(endo-(S)-MBnNDI)s were negatively large compared with those of lower Mn polymers. Using (−)-spartaine (Sp) as a chiral additive, some polymers exhibited stronger chiroptical properties compared with polymers that were obtained without the chiral additive. Chiral and achiral amine-functionalized norbornene monomers were synthesized and polymerized using 1st Grubbs Catalyst, and the chiroptical properties of the polymers were studied. The tendency to increase the absolute value of specific rotation with an increase in Mn was observed. Using (−)-spartaine (Sp) as a chiral additive, the chiroptical property of the obtained polymer was enhanced in some cases.
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