Synthesis and Characterization of Dumbbell-like C70Polystyrene Derivatives

Abstract

Abstract: The dumbbell-like C₇₀polystyrene derivatives were prepared through direct reaction of the "living" dianionic polystyrene obtained by sodium naphthalene-initiated anionic polymerization with C₇₀in the C₆H₆/THF mixed solvents. The products were characterized by UV-Vis, FTIR, GPC, ¹H NMR, ¹³CNMR, SEM, XRD, TGA and DSC techniques. The GPC analysis showed the C₇₀-styrene copolymers and the parent polystyrene have nearly the same molecular weights. From the GPC data and the C₇₀contents of the copolymers determined by TGA, it was confirmed that the C₇₀-polystyrene derivatives are linear dumbbell-like macromolecules in which two C₇₀molecules end-capped together by a polystyrene chain.

Key words: C₇₀, Polystyrene, Anionic copolymerization, Structural characterization

CLC Number:

O631

TrendMD:

SHEN Jian-Zhong, GUO Chong-Dong, CHEN Yu, CAI Rui-Fang . Synthesis and Characterization of Dumbbell-like C₇₀Polystyrene Derivatives[J]. Chem. J. Chinese Universities, 2003, 24(9): 1686.

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Synthesis and Characterization of Dumbbell-like C₇₀Polystyrene Derivatives

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