Abstract
Norbornene derivatives exo,endo-2-[2-(3,5-di-tert-butyl-4-hydroxyphenoxy)-acetoxy]methyl-5-norbornene (M1) and 3,3,5,5- etramethyl-4-piperidinyl 5-norbornene-exo,endo-2-carboxylate (M2) were synthesized and polymerized by RuCl2 (=CHPh)(PCy3)2 to prepare a novel kind of bi-functional polymer bearing sterically hindered phenol (SHP) and hindered amine (HLAS) groups via ring-opening metathesis polymerization (ROMP). The resulting copolymers were characterized by gel permeation chromatography (GPC), 1H-NMR and differential scanning calorimetry (DSC). The number average molecular weight (Mn) and functional unit content of the resulting copolymer could be regulated by varying the concentration of catalyst and monomer feed.
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