Macromolecules

From nonconjugated diynes to conjugated polyenes: Syntheses of poly (1-phenyl-7-aryl-1, 6-heptadiyne) s by cyclopolymerizations of asymmetrically α, ω- …

…, JWY Lam, Y Dong, H Tong, BZ Tang

Index: Law, Charles C.W.; Lam, Jacky W.Y.; Dong, Yuping; Tong, Hui; Tang, Ben Zhong Macromolecules, 2005 , vol. 38, # 3 p. 660 - 662

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Citation Number: 22

Abstract

1, 6-Heptadiyne can be polymerized by MoCl5-based catalysts into a polyene of cyclic structure. 1 The polymer is, however, insoluble in common solvents and sensitive to air oxidation. Introduction of substituents to the 4-position can help enhance the processability and stability of the polyene, and a large variety of (a)-symmetrically 4, 4-disubstituted poly (1, 6-heptadiyne) s have been synthesized (Supporting Information, Scheme S1), some of ...