Methyl methacrylate polymerization in the presence of C60 (C70) and molecular characteristics of fullerene-containing poly(methyl methacrylate)

Fullerene-Perylenediimide (C60-PDI) Based Systems: An Overview and Synthesis of a Versatile Platform for Their Anchor Engineering

“…For the synthesis of polymer 3 ( Pol 3 ), we have opted for an addition-elimination reaction carried out on dyad 10 with commercial poly(methacryloyl chloride) (25% solution in dioxane, Polyscience) in dry dioxane in the presence of triethylamine. Indeed, although a co-polymerization of dyad 12 and methyl methacrylate could be considered [ 111 ], C 60 acting as a radical scavenger during the free-radical polymerization [ 112 ], we thought that homopolymerization of dyad 12 could be difficult to occur due to the volume of the substituent of the methacrylate unit which determines the penultimate-unit effect during the free-radical polymerization or co-polymerization process [ 113 ].…”

Fullerenes

“…The effect of the covalently bound fullerene on the molecular characteristics of polymers were investigated by translational isothermal diffusion, high-speed sedimentation and viscometry. 58 C 60 fullerene-functionalized isotactic polypropylene derivatives were synthesised by direct reaction in 1,2,4-trichlorobenzene solution in the presence of dicumyl peroxide. The functionalized polymers have been characterised by spectroscopic techniques.…”

Preparation and Characterizations of C60/Polystyrene Composite Particle Containing Pristine C60Clusters

“…On the other hand, C 60 -PS copolymer (Figure 1(e)) exhibited no such characteristic vibrational bands of C 60 , indicating that C 60 is no longer in its pristine form and covalently bonded to the growing PS chain. Such covalent incorporations of C 60 during the polymerization of styrene initiated by organic radical initiators were also reported by many researchers, 10,11,16 and, in this case, the original chemical characteristics and physical properties of C 60 should be lost after the incorporation. From the above results, it was evident that C 60 was incorporated in the C 60 / PS particles in its pristine form under our preparation conditions, which is favorable for the utilization of chemical or physical properties of C 60 .…”

“…Generally, copolymerization of vinyl monomers such as styrene and methyl methacrylate with C 60 is initiated by organic free radical initiators such as 2,2'-azobis(2-methylpropionitrile) (AIBN) or dibenzoyl peroxide (BPO). [9][10][11][12][13][14] Due to the high susceptibility of C 60 toward free radicals (> 10 5 times higher than vinyl monomers), 9 however, C 60 molecules are incorporated in the polymer chain with a covalently bonded structure resulting in a copolymerization with styrene, which consequently changes the spectroscopic and electronic properties of C 60 . Liao et al investigated the selforganized supramolecular aggregates obtained from spraying the solution of fullerenes grafted with linear polymer chains by light-scattering and fluorescence spectroscopy.…”