A new class of multifunctional poly(1, 6‐heptadiyne)‐based materials by metathesis polymerization

Choi, Sam‐Kwon; Lee, Jihoon; Kim, Hwan-Kyu

doi:10.1002/masy.19971180110

Cited by 10 publications

(1 citation statement)

References 23 publications

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“…This concept on cyclopolymerization was effectively applied to the nonconjugated diacetylene more than 35 years ago, which was the current enthusiasm for investigating the electrical, − , electrooptical, and optical properties − ,, of unsaturated polymers existed at the earlier stage. More recently, since various substituted acetylenes have been polymerized to give the π-conjugated polymers, ,− the cyclopolymerization of nonconjugated diynes were extensively investigated in an attempt to prepare the polymer that would contain alternating double and single bonds along the polymer main chain with a cyclic recurring unit. ,− …”

Section: Poly(16-heptadiyne) Derivatives By Metathesis Cyclopolymeriz...mentioning

confidence: 99%

Poly(1,6-heptadiyne)-Based Materials by Metathesis Polymerization

et al. 2000

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A new class of multifunctional polymers based on poly(l,6heptadiyne) derivatives with various functional groups such as carbazole unit for photoconductive polymers and nonlinear optical (NLO) chromophores for NLO polymers were synthesized by metathesis polymerization. The polymerizations were carried out with MoCI,-and WCI,-based catalysts. The catalytic activity of MoCI, was found to be greater than that of WCI , . The resulting polymers exhibited photoconductivity and large optical nonlinearity. These conjugated polymers have good solubility in common organic solvents, long-term stability toward air oxidation, and high electrical conductivity.

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Section: Poly(16-heptadiyne) Derivatives By Metathesis Cyclopolymeriz...mentioning

confidence: 99%

Poly(1,6-heptadiyne)-Based Materials by Metathesis Polymerization

et al. 2000

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Cyclopolymerization of dipropargylfluorene by transition‐metal catalysts

Gal

Jin

Park

et al. 2001

J. Polym. Sci. A Polym. Chem.

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A fluorene‐containing spiro‐type conjugated polymer, poly(dipropargylfluorene), was synthesized via the cyclopolymerization of dipropargylfluorene by Mo‐ and W‐based transition‐metal catalysts. The polymerization of dipropargylfluorene proceeded well by MoCl5 catalyst itself to give a quantitative yield of polymer. The Mo‐based catalysts are more effective than those of W‐based catalysts. The structure of poly(dipropargylfluorene) was characterized by various instrumental methods (NMR, IR, and UV–visible spectroscopies) to have the conjugated polymer backbone carrying fluorene moieties. Analysis of the 13C NMR spectrum revealed that the polymer structure consists of only six‐membered rings. The resulting poly(dipropargylfluorene)s were brown or black powder and soluble in aromatics and halogenated hydrocarbons such as benzene, chlorobenzene, tetrahydrofuran, chloroform, and methylene chloride. Thermal and morphological properties of the polymer are also discussed. © 2001 John Wiley & Sons, Inc. J Polym Sci Part A: Polym Chem 39: 4101–4109, 2001

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Synthesis and properties of poly‐(2‐ethynylpyridinium bromide) having propargyl side chains

Gal

Lee

Kim

et al. 2001

J. Polym. Sci. A Polym. Chem.

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Poly‐(2‐ethynylpyridinum bromide) (PEPBP) having propargyl side chains was prepared by the direct polymerization of 2‐ethynylpyridine and propargyl bromide under mild reaction conditions without any initiator and catalysts. The polymerization proceeded well to give PEPBP with propargyl side chains in relatively high yields. Various spectral data for the polymer structure indicated that the conjugated polymer system having N‐propargylpyridinum substituent was formed. This ionic polymer was completely soluble in water, methanol, dimethylformamide, dimethyl sulfoxide, and N,N‐dimethylacetamide and well processable into thin homogeneous film. The photoluminescence intensity (λmax = 760 nm) of this polymer increased as the temperature was increased. At 1 KHz and room temperature, this polymer has k′ = 2.9 and σ = 7.3 × 10−10 (S/cm). © 2001 John Wiley & Sons, Inc. J Polym Sci Part A: Polym Chem 39: 3151–3158, 2001

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A new class of multifunctional poly(1, 6‐heptadiyne)‐based materials by metathesis polymerization

Cited by 10 publications

References 23 publications

Poly(1,6-heptadiyne)-Based Materials by Metathesis Polymerization

Poly(1,6-heptadiyne)-Based Materials by Metathesis Polymerization

Cyclopolymerization of dipropargylfluorene by transition‐metal catalysts

Synthesis and properties of poly‐(2‐ethynylpyridinium bromide) having propargyl side chains

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